Physics

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A planet moving along an elliptical orbit is closest to the sun at a distance r_¹ and farthest away at a distance of r₂. If v₁ and v₂ are the liner velocities at these points respectively, then the ratio $v subscript 1 over v subscript 2$ is

$\frac{r_{1}}{r_{2}}$
${(\frac{r_{1}}{r_{2}})}^{2}$
$\frac{r_{2}}{r_{1}}$
${(\frac{r_{1}}{r_{2}})}^{2}$

The correct answer is: $r subscript 2 over r subscript 1$

A block of mass $m equals 2 times k subscript E end subscript$ is resting on a rough inclined plane of inclination 30° as shown in fignre. The coefficient of friction between the block and the plane is =0.5. What minimam force $F$ shald be applied perpendicular to the plane of block does not slip on the plane ? $open parentheses g equals 10 text end text m s to the power of negative 2 end exponent close parentheses$

physics-General

General

physics-

Three blocks having equal mass of $2 text end text k g$ are hanging on a string passing over a pulley as shown in figure. whal will be the tension prodoced in a string connccting the blocks B and C.

physics-General

General

physics-

A bag of sand of mass m is suspended hy rope. A bullet of mass m/30 is fired at it with a velocity v and gets embedded into it . The velocity of the bag finally is

physics-General

General

physics-

Three blocks A,B, and C of equal mass $m$ are placed one over the other, one on a smooth horizontal ground as shown in figure. Cefixime of friction between any two blocks of A,B and $C$ is 0.5. What would he the maximum value of mass of block D so that the blocks A,B and C move without slipping over each other '?

physics-General

General

physics-

$A blank$ body of mass m rests on horizontal surface. The coefficient of friction between the body and the surface is if the body is pulled by a force P as shown in figure the limiting function between body and surface will be

physics-General

General

physics

A satellite of mass m is orbiting close to the surface of the earth (Radius R=6400 km ) has a K.E. K. The corresponding K.E. of satellite to escape from the earth's gravitational field is

physicsGeneral

General

physics-

Three masses $1 text end text k g comma 6 text end text k g$ and $3 text end text k g$ are connccied to cach other with threads and are placed on a table as shown in figure. The alcceleration with which the system is moving is $negative m s to the power of 2 end exponent open parentheses g equals 10 m s to the power of 2 end exponent close parentheses$

physics-General

General

physics-

If the surfaces shown in figure are frictionless, the ratio of $T subscript 1 end subscript$ and $T subscript 2 end subscript$ is

physics-General

General

physics-

Three blocks of masers $m subscript 1 end subscript comma m subscript 2 end subscript$ and $m subscript 3 end subscript text end text a r e blank c o n n e c t e d$ by massless strings as shown in figure, on a frictionless table. They are Pulled with the force $T subscript 3 end subscript equals 40 text end text N$ . If $m subscript 1 end subscript equals 10 text end text k g comma text end text m subscript 2 end subscript equals 6 text end text k g$ and $m subscript 3 end subscript equals 4 k g$ the tension $T subscript 2 end subscript$ will $b e equals horizontal ellipsis horizontal ellipsis blank N$

physics-General

General

Maths-

Assertion $left parenthesis A right parenthesis colon$ If $u equals log space open parentheses fraction numerator x squared plus y squared over denominator x minus y end fraction close parentheses$ then $x squared u subscript x x end subscript plus 2 x y u subscript x y end subscript plus y squared u subscript y y end subscript equals negative 1$
Reason $left parenthesis bold R right parenthesis colon$ If $u equals f left parenthesis x comma y right parenthesis$ is a homogeneous function in $x comma y$ of degree ' $n$ ' then $x squared u subscript x x end subscript plus 2 x y u subscript x y end subscript plus y squared u subscript y y end subscript equals n left parenthesis n minus 1 right parenthesis u$

For such questions, we should know the formulas related to homogeneous equation. Before solving the equation, we have to see if the given function is a homegenous function. A homegenous function has same degree for all its terms.

Assertion $left parenthesis A right parenthesis colon$ If $u equals log space open parentheses fraction numerator x squared plus y squared over denominator x minus y end fraction close parentheses$ then $x squared u subscript x x end subscript plus 2 x y u subscript x y end subscript plus y squared u subscript y y end subscript equals negative 1$
Reason $left parenthesis bold R right parenthesis colon$ If $u equals f left parenthesis x comma y right parenthesis$ is a homogeneous function in $x comma y$ of degree ' $n$ ' then $x squared u subscript x x end subscript plus 2 x y u subscript x y end subscript plus y squared u subscript y y end subscript equals n left parenthesis n minus 1 right parenthesis u$

Maths-General

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Two blocks of Nass $8 text end text k g$ and $4 text end text k g$ ane connected a heavy string placed on rough horizontal plane, the 4 kg block is Pulled with a constant force F. The co-efficient of friction between the blocks and the ground is $0.5$ , what is the value of F, So that the tension in the spring is constant throughout during the motion of the blocks? $open parentheses g equals 10 text end text m s to the power of negative 2 end exponent close parentheses$

physics-General

General

physics-

A plate of mass $M$ is placed on a horizontal frictionless surface and a body of mass $m$ is placed on this plate, The coefficient of dynamic friction between this body and the plate is $mu$ . If a force $2 mu m g$ . is applied to the body of mass in along the horizonal direction the acceleration of the plate will be ……

physics-General

General

physics-

Three forces are acting simultaneously on a particle mowing with velocity $stack V with rightwards arrow on top$ . These forces are represcaled in magnitude and dircction by the three sidcs of a triangle $A B C$ . The particle will now move with velocity…..

physics-General

General

physics-

A body of 2 kg has an initial speed 5 m/s. A force act $c o s$ it for some time in the directive of motion. The force $left parenthesis stack F with rightwards arrow on top right parenthesis$ -me time (t) graph is shown in figure. The final speed of the body is

physics-General

General

physics-

A force (F) varies with time (t) as shown in fig. Average force aver a complete cycle is

physics-General

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A planet moving along an elliptical orbit is closest to the sun at a distance r_¹ and farthest away at a distance of r₂. If v₁ and v₂ are the liner velocities at these points respectively, then the ratio $v subscript 1 over v subscript 2$ is

$\frac{r_{1}}{r_{2}}$
${(\frac{r_{1}}{r_{2}})}^{2}$
$\frac{r_{2}}{r_{1}}$
${(\frac{r_{1}}{r_{2}})}^{2}$

The correct answer is: $r subscript 2 over r subscript 1$

Related Questions to study

Three blocks having equal mass of $2 text end text k g$ are hanging on a string passing over a pulley as shown in figure. whal will be the tension prodoced in a string connccting the blocks B and C.

Three blocks having equal mass of $2 text end text k g$ are hanging on a string passing over a pulley as shown in figure. whal will be the tension prodoced in a string connccting the blocks B and C.

A bag of sand of mass m is suspended hy rope. A bullet of mass m/30 is fired at it with a velocity v and gets embedded into it . The velocity of the bag finally is

A bag of sand of mass m is suspended hy rope. A bullet of mass m/30 is fired at it with a velocity v and gets embedded into it . The velocity of the bag finally is

$A blank$ body of mass m rests on horizontal surface. The coefficient of friction between the body and the surface is if the body is pulled by a force P as shown in figure the limiting function between body and surface will be

$A blank$ body of mass m rests on horizontal surface. The coefficient of friction between the body and the surface is if the body is pulled by a force P as shown in figure the limiting function between body and surface will be

A satellite of mass m is orbiting close to the surface of the earth (Radius R=6400 km ) has a K.E. K. The corresponding K.E. of satellite to escape from the earth's gravitational field is

A satellite of mass m is orbiting close to the surface of the earth (Radius R=6400 km ) has a K.E. K. The corresponding K.E. of satellite to escape from the earth's gravitational field is

If the surfaces shown in figure are frictionless, the ratio of $T subscript 1 end subscript$ and $T subscript 2 end subscript$ is

If the surfaces shown in figure are frictionless, the ratio of $T subscript 1 end subscript$ and $T subscript 2 end subscript$ is

Three forces are acting simultaneously on a particle mowing with velocity $stack V with rightwards arrow on top$ . These forces are represcaled in magnitude and dircction by the three sidcs of a triangle $A B C$ . The particle will now move with velocity…..

Three forces are acting simultaneously on a particle mowing with velocity $stack V with rightwards arrow on top$ . These forces are represcaled in magnitude and dircction by the three sidcs of a triangle $A B C$ . The particle will now move with velocity…..

A body of 2 kg has an initial speed 5 m/s. A force act $c o s$ it for some time in the directive of motion. The force $left parenthesis stack F with rightwards arrow on top right parenthesis$ -me time (t) graph is shown in figure. The final speed of the body is

A body of 2 kg has an initial speed 5 m/s. A force act $c o s$ it for some time in the directive of motion. The force $left parenthesis stack F with rightwards arrow on top right parenthesis$ -me time (t) graph is shown in figure. The final speed of the body is

A force (F) varies with time (t) as shown in fig. Average force aver a complete cycle is

A force (F) varies with time (t) as shown in fig. Average force aver a complete cycle is

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A planet moving along an elliptical orbit is closest to the sun at a distance r1 and farthest away at a distance of r2. If v1 and v2 are the liner velocities at these points respectively, then the ratio is

The correct answer is:

Related Questions to study

A block of mass is resting on a rough inclined plane of inclination 30° as shown in fignre. The coefficient of friction between the block and the plane is =0.5. What minimam force shald be applied perpendicular to the plane of block does not slip on the plane ?

A block of mass is resting on a rough inclined plane of inclination 30° as shown in fignre. The coefficient of friction between the block and the plane is =0.5. What minimam force shald be applied perpendicular to the plane of block does not slip on the plane ?

Three blocks having equal mass of are hanging on a string passing over a pulley as shown in figure. whal will be the tension prodoced in a string connccting the blocks B and C.

Three blocks having equal mass of are hanging on a string passing over a pulley as shown in figure. whal will be the tension prodoced in a string connccting the blocks B and C.

A bag of sand of mass m is suspended hy rope. A bullet of mass m/30 is fired at it with a velocity v and gets embedded into it . The velocity of the bag finally is

A bag of sand of mass m is suspended hy rope. A bullet of mass m/30 is fired at it with a velocity v and gets embedded into it . The velocity of the bag finally is

body of mass m rests on horizontal surface. The coefficient of friction between the body and the surface is if the body is pulled by a force P as shown in figure the limiting function between body and surface will be

body of mass m rests on horizontal surface. The coefficient of friction between the body and the surface is if the body is pulled by a force P as shown in figure the limiting function between body and surface will be

A satellite of mass m is orbiting close to the surface of the earth (Radius R=6400 km ) has a K.E. K. The corresponding K.E. of satellite to escape from the earth's gravitational field is

A satellite of mass m is orbiting close to the surface of the earth (Radius R=6400 km ) has a K.E. K. The corresponding K.E. of satellite to escape from the earth's gravitational field is

Three masses and are connccied to cach other with threads and are placed on a table as shown in figure. The alcceleration with which the system is moving is

Three masses and are connccied to cach other with threads and are placed on a table as shown in figure. The alcceleration with which the system is moving is

If the surfaces shown in figure are frictionless, the ratio of and is

If the surfaces shown in figure are frictionless, the ratio of and is

Three blocks of masers and by massless strings as shown in figure, on a frictionless table. They are Pulled with the force . If and the tension will

Three blocks of masers and by massless strings as shown in figure, on a frictionless table. They are Pulled with the force . If and the tension will

Assertion If then Reason If is a homogeneous function in of degree ' ' then

Assertion If then Reason If is a homogeneous function in of degree ' ' then

Three forces are acting simultaneously on a particle mowing with velocity . These forces are represcaled in magnitude and dircction by the three sidcs of a triangle . The particle will now move with velocity…..

Three forces are acting simultaneously on a particle mowing with velocity . These forces are represcaled in magnitude and dircction by the three sidcs of a triangle . The particle will now move with velocity…..

A body of 2 kg has an initial speed 5 m/s. A force act it for some time in the directive of motion. The force -me time (t) graph is shown in figure. The final speed of the body is

A body of 2 kg has an initial speed 5 m/s. A force act it for some time in the directive of motion. The force -me time (t) graph is shown in figure. The final speed of the body is

A force (F) varies with time (t) as shown in fig. Average force aver a complete cycle is

A force (F) varies with time (t) as shown in fig. Average force aver a complete cycle is

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A planet moving along an elliptical orbit is closest to the sun at a distance r_¹ and farthest away at a distance of r₂. If v₁ and v₂ are the liner velocities at these points respectively, then the ratio $v subscript 1 over v subscript 2$ is

The correct answer is: $r subscript 2 over r subscript 1$

Three blocks having equal mass of $2 text end text k g$ are hanging on a string passing over a pulley as shown in figure. whal will be the tension prodoced in a string connccting the blocks B and C.

Three blocks having equal mass of $2 text end text k g$ are hanging on a string passing over a pulley as shown in figure. whal will be the tension prodoced in a string connccting the blocks B and C.

$A blank$ body of mass m rests on horizontal surface. The coefficient of friction between the body and the surface is if the body is pulled by a force P as shown in figure the limiting function between body and surface will be

$A blank$ body of mass m rests on horizontal surface. The coefficient of friction between the body and the surface is if the body is pulled by a force P as shown in figure the limiting function between body and surface will be

If the surfaces shown in figure are frictionless, the ratio of $T subscript 1 end subscript$ and $T subscript 2 end subscript$ is

If the surfaces shown in figure are frictionless, the ratio of $T subscript 1 end subscript$ and $T subscript 2 end subscript$ is

Three forces are acting simultaneously on a particle mowing with velocity $stack V with rightwards arrow on top$ . These forces are represcaled in magnitude and dircction by the three sidcs of a triangle $A B C$ . The particle will now move with velocity…..

Three forces are acting simultaneously on a particle mowing with velocity $stack V with rightwards arrow on top$ . These forces are represcaled in magnitude and dircction by the three sidcs of a triangle $A B C$ . The particle will now move with velocity…..

A body of 2 kg has an initial speed 5 m/s. A force act $c o s$ it for some time in the directive of motion. The force $left parenthesis stack F with rightwards arrow on top right parenthesis$ -me time (t) graph is shown in figure. The final speed of the body is

A body of 2 kg has an initial speed 5 m/s. A force act $c o s$ it for some time in the directive of motion. The force $left parenthesis stack F with rightwards arrow on top right parenthesis$ -me time (t) graph is shown in figure. The final speed of the body is