Physics-
General
Easy
Question
Statement–I : A parachute descends slowly whereas a stone dropped from same height falls rapidly
Statement–II : The viscous force of air on parachute is larger than that of on a falling stone
- Statement–I is true, Statement–II is true ; Statement–II is correct explanation for Statement–I
- Statement–I is true, Statement–II is true ; Statement–II is NOT a correct explanation for Statement–I
- Statement–I is true, Statement–II is false
- Statement–I is false, Statement–II is true
The correct answer is: Statement–I is true, Statement–II is true ; Statement–II is correct explanation for Statement–I
Related Questions to study
Maths-
In ABC ,AD is median, point F lies on AD such that 
, and 
intersect at E and BF and AC intersect at G.
If 
are position vectors of points A, B, C respectively such that are non-coplanar and if mid-point of AG 
, then the value of 
is
In ABC ,AD is median, point F lies on AD such that , and intersect at E and BF and AC intersect at G.
If are position vectors of points A, B, C respectively such that are non-coplanar and if mid-point of AG , then the value of is
Maths-General
Maths-
Statement-1: line 
is 
line 
is 
line L is parallel to z-axis and intersects and in the point A and B then AB=8
Statement-2 : 
are two skew lines then there exists a unique line L parallel to 
such that line L intersects the given skew lines where 
are pair wise linearly independent
Statement-1: line is line is line L is parallel to z-axis and intersects and in the point A and B then AB=8
Statement-2 : are two skew lines then there exists a unique line L parallel to such that line L intersects the given skew lines where are pair wise linearly independent
Maths-General
Maths-
Assertion (A) : If 
and 
are coplanar then 
Reason (R) : A set of vectors a1, a2, a3.an is said to be linearly dependent if for some relation of the form 
implies at least one of the scalars li (i = 1,2.n) is not zero
Assertion (A) : If and are coplanar then
Reason (R) : A set of vectors a1, a2, a3.an is said to be linearly dependent if for some relation of the form implies at least one of the scalars li (i = 1,2.n) is not zero
Maths-General
Maths-
Let 
and 
. Then the point of intersection of the
lines 
and 
is
Let and . Then the point of intersection of the
lines and is
Maths-General
Maths-
The length of the projection of the line segment joining the points A (1,2,5) and B (4,7,3) on the line whose direction ratios are 6,2,3 is
The length of the projection of the line segment joining the points A (1,2,5) and B (4,7,3) on the line whose direction ratios are 6,2,3 is
Maths-General
Maths-
If the four plane focus of a tetrahedron are represented by the equation lx + my = 0, my + nz = 0, nz + px = 0, and lx + my + nz = p , then the volume of the tetrahedron are
If the four plane focus of a tetrahedron are represented by the equation lx + my = 0, my + nz = 0, nz + px = 0, and lx + my + nz = p , then the volume of the tetrahedron are
Maths-General
Maths-
If 
and 
are two unit vectors and 
is the angle between them, then 
is equal to
If and are two unit vectors and is the angle between them, then is equal to
Maths-General
Maths-
Statement-1:The area of the triangle formed by the points A(20,22) ;B(21,24) and C(22,23) is the same as the area of the triangle formed by the point P(0,0) ;Q(1,2) and R(2,1) . Because
Statement-2: The area of the triangle is invariant w.r.t translation of the coordinate axes.
Statement-1:The area of the triangle formed by the points A(20,22) ;B(21,24) and C(22,23) is the same as the area of the triangle formed by the point P(0,0) ;Q(1,2) and R(2,1) . Because
Statement-2: The area of the triangle is invariant w.r.t translation of the coordinate axes.
Maths-General
Maths-
and 
is a unit vector. The maximum value of the scalar triple product 
is
and is a unit vector. The maximum value of the scalar triple product is
Maths-General
Physics-
In metals the time of relaxation of electrons
In metals the time of relaxation of electrons
Physics-General
Maths-
and
are the position vectors of two fixed points and 
is the position vector of a variable point. If R moves such that 
=0 then the locus of R is
and are the position vectors of two fixed points and is the position vector of a variable point. If R moves such that =0 then the locus of R is
Maths-General
Maths-
The functions 
and 
are called inverse circular or inverse trigonometric functions which are defined as follows
Number of solutions of 
is/are
The functions and are called inverse circular or inverse trigonometric functions which are defined as follows
Number of solutions of is/are
Maths-General
Maths-
Given : 
Sum of all solutions is
Given :
Sum of all solutions is
Maths-General
Maths-
This section contains 3 multiple choice questions numbered 14 to 16 .Each question has 4 choices (A), (B),(c) , and (D), out of which ONE or MORE may be correct
If 
is real , then
This section contains 3 multiple choice questions numbered 14 to 16 .Each question has 4 choices (A), (B),(c) , and (D), out of which ONE or MORE may be correct
If is real , then
Maths-General
Physics-
A charge q is placed at the center of the open end of cylindrical vessel. The flux of the electric field through surface of the vessel is
A charge q is placed at the center of the open end of cylindrical vessel. The flux of the electric field through surface of the vessel is
Physics-General
