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The earth moves around the Sun in an elliptical orbit as shown in the given figure. The ratio OA/OB=x. The ratio of the speed of the earth at B to that at A is nearly:
13
Sep
The earth moves around the Sun in an elliptical orbit as shown in the given figure. The ratio OA/OB=x. The ratio of the speed of the earth at B to that at A is nearly: The earth moves around the Sun in an elliptical orbit as shown in the given figure. The ratio OA/OB=x. The [...]
Two satellites of masses m1 and m2 (m1>m2) are revolving around the earth in a circular orbit of radii r1 and r2 (r1>r2), respectively. Which of the following statements is true regarding their speeds v1 and v2?
13
Sep
Two satellites of masses m1 and m2 (m1>m2) are revolving around the earth in a circular orbit of radii r1 and r2 (r1>r2), respectively. Which of the following statements is true regarding their speeds v1 and v2? respectively. Which of the following statements is true regarding their speeds v1 and v2? Two satellites of masses [...]
The value of g at a particular point is 10ms^−2. Suppose the earth shrinks uniformly to half of its present size without losing any mass. The value of g at the same point (assuming that the distance of the point from the centre of the earth does not change) will now be
13
Sep
The value of g at a particular point is 10ms^−2. Suppose the earth shrinks uniformly to half of its present size without losing any mass. The value of g at the same point (assuming that the distance of the point from the centre of the earth does not change) will now be A rocket is [...]
A solid sphere of uniform density and radius R applies a gravitational force of attraction equal to F1 on a particle placed at a distance 2R from the centre of the sphere. A spherical cavity of radius R/2 is now made in the sphere as shown in the figure. The sphere with the cavity now applies a gravitational force F2 on the same particle. The ratio F1/F2 is
13
Sep
A solid sphere of uniform density and radius R applies a gravitational force of attraction equal to F1 on a particle placed at a distance 2R from the centre of the sphere. A spherical cavity of radius R/2 is now made in the sphere as shown in the figure. The sphere with the cavity now [...]
A body is released from a point of distance R’ from the centre of the earth. Its velocity at the time of striking the earth will be (R′>Re).
13
Sep
A body is released from a point of distance R’ from the centre of the earth. Its velocity at the time of striking the earth will be (R′>Re). A body is released from a point of distance R' from the centre of the earth. Its velocity at the time of striking the earth will be [...]
Two bodies of masses M1 and M2 are placed at a distance R apart. Then at the position where the gravitational field due to them is zero, the gravitational potential is
13
Sep
Two bodies of masses M1 and M2 are placed at a distance R apart. Then at the position where the gravitational field due to them is zero, the gravitational potential is the gravitational potential is Two bodies of masses M1 and M2 are placed at a distance R apart. Then at the position where the [...]
How many hours would make a day if earth were rotating at such a high speed that the weight of a body on the equator were zero ?
13
Sep
How many hours would make a day if earth were rotating at such a high speed that the weight of a body on the equator were zero ? How many hours would make a day if earth were rotating at such a high speed that the weight of a body on the equator were zero [...]
Which of the following transitions in a hydrogen atom emits photon of the highest frequency ?
13
Sep
Which of the following transitions in a hydrogen atom emits photon of the highest frequency ? Which of the following transitions in a hydrogen atom emits photon of the highest frequency ? September 13, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
A ball of mass m is fired vertically upwards from the surface of the earth with velocity nνe, where νe is the escape velocity and n>1. To what height will the ball rise? Neglecting air resistance, take radius of the earth as R
13
Sep
A ball of mass m is fired vertically upwards from the surface of the earth with velocity nνe, where νe is the escape velocity and n>1. To what height will the ball rise? Neglecting air resistance, take radius of the earth as R A ball of mass m is fired vertically upwards from the surface [...]
In a hypothetical Bohr hydrogen, the mass of the electron is doubled. The energy Eo and the radius r0 of the first orbit will be
13
Sep
In a hypothetical Bohr hydrogen, the mass of the electron is doubled. The energy Eo and the radius r0 of the first orbit will be In a hypothetical Bohr hydrogen the mass of the electron is doubled. The energy Eo and the radius r0 of the first orbit will be September 13, 2020 Category: Uncategorised [...]