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Physics-

General

Easy

Question

The escape velocity of a projectile from the earth is approximately-

11.2 m/sec
112 km/sec
11.2 km/sec
11200 km/sec

The correct answer is: 11.2 km/sec

Related Questions to study

If $x to the power of 2 end exponent plus y to the power of 2 end exponent minus 4 x minus 6 y plus c equals 0$ is the circumcircle of the triangle formed by three tangents to the parabola $y to the power of 2 end exponent equals 4 x minus 4 comma$ then radius of the circle is

If $x to the power of 2 end exponent plus y to the power of 2 end exponent minus 4 x minus 6 y plus c equals 0$ is the circumcircle of the triangle formed by three tangents to the parabola $y to the power of 2 end exponent equals 4 x minus 4 comma$ then radius of the circle is

A line bisecting the ordinate PN of a point $P open parentheses a t to the power of 2 end exponent comma 2 a t close parentheses comma t greater than 0 comma$ on the parabola $y to the power of 2 end exponent equals 4 a x$ is drawn parallel to the axis to meet the curve at Q. If NQ meets the tangent at the vertex at the point T, then the coordinates of T are

A line bisecting the ordinate PN of a point $P open parentheses a t to the power of 2 end exponent comma 2 a t close parentheses comma t greater than 0 comma$ on the parabola $y to the power of 2 end exponent equals 4 a x$ is drawn parallel to the axis to meet the curve at Q. If NQ meets the tangent at the vertex at the point T, then the coordinates of T are

Three normals drawn from any point to the parabola y² = 4ax cut the line x = 2a in points whose ordinates are in arithmetical progression. Then the tangents of the angles which the normals make the axis of the parabola are in :

Three normals drawn from any point to the parabola y² = 4ax cut the line x = 2a in points whose ordinates are in arithmetical progression. Then the tangents of the angles which the normals make the axis of the parabola are in :

parallel

PQ is a normal chord of the parabola y2 = 4ax at P, A being the vertex of the parabola. Through P a line is drawn parallel to AQ meeting the x-axis in R. Then the length of AR is :

PQ is a normal chord of the parabola y2 = 4ax at P, A being the vertex of the parabola. Through P a line is drawn parallel to AQ meeting the x-axis in R. Then the length of AR is :

The particle A is converted to C via following reactions then $A rightwards arrow B plus H e to the power of 4 end exponent B rightwards arrow C plus 2 e to the power of 0 end exponent$

The particle A is converted to C via following reactions then $A rightwards arrow B plus H e to the power of 4 end exponent B rightwards arrow C plus 2 e to the power of 0 end exponent$

Physics-General

If the atom ₁₀₀Fm²⁵⁷ follows Bohr model and the radius of last orbit of ₁₀₀Fm²⁵⁷ is n times the Bohr radius, then find n

If the atom ₁₀₀Fm²⁵⁷ follows Bohr model and the radius of last orbit of ₁₀₀Fm²⁵⁷ is n times the Bohr radius, then find n

Physics-General

parallel

he intensity of X-rays from a coolidge tuberin’s plotted against wavelength $lambda$ as shown the figure The minimum wavelength found is $lambda subscript c end subscript$
and the wavelength of the $K subscript alpha end subscript$ line is $lambda subscript k end subscript$ As the accelerating voltage is increased

he intensity of X-rays from a coolidge tuberin’s plotted against wavelength $lambda$ as shown the figure The minimum wavelength found is $lambda subscript c end subscript$
and the wavelength of the $K subscript alpha end subscript$ line is $lambda subscript k end subscript$ As the accelerating voltage is increased

physics-General

If A= B=C=1 and X = $Error converting from MathML to accessible text.$ + $Error converting from MathML to accessible text.$ + $Error converting from MathML to accessible text.$ , then X=

If A= B=C=1 and X = $Error converting from MathML to accessible text.$ + $Error converting from MathML to accessible text.$ + $Error converting from MathML to accessible text.$ , then X=

Physics-General

The tangent at P to a parabola y² = 4ax meets the directrix at U and the latus rectum at V then SUV (where S is the focus) :

The tangent at P to a parabola y² = 4ax meets the directrix at U and the latus rectum at V then SUV (where S is the focus) :

parallel

Which one of the following equations represented parametrically, represents equation to a parabolic profile ?

Which one of the following equations represented parametrically, represents equation to a parabolic profile ?

In the circuit shown (Fig). if the diode forward voltage drop is 0.3V, the voltage difference between A and B is :

In the circuit shown (Fig). if the diode forward voltage drop is 0.3V, the voltage difference between A and B is :

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A 220V ac supply is connected between points A and B (Fig). What will be the potential difference V across the capacitor?

A 220V ac supply is connected between points A and B (Fig). What will be the potential difference V across the capacitor?

physics-General

parallel

In the figure shown the potential drop across the series resistor is

In the figure shown the potential drop across the series resistor is

Physics-General

Find the effective resistance between A and B

Find the effective resistance between A and B

physics-General

Two ideal junction diodes D₁, D₂ are connected as shown in the figure. A 3V battery is connected between A and B. The current supplied by the battery if its positive terminal is connected to A is

Two ideal junction diodes D₁, D₂ are connected as shown in the figure. A 3V battery is connected between A and B. The current supplied by the battery if its positive terminal is connected to A is

physics-General

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