Question Answers
Sahay Sir > Question Answers
A uniform metal rod is used as a bar pendulum. If the room temperature rises by 10 degree C, and the coefficient of linear expansion of the meetal of the rod is 2 x 10^-6 per degree C, the period of the pendulum will have percentage increases of
03
Oct
A uniform metal rod is used as a bar pendulum. If the room temperature rises by 10 degree C, and the coefficient of linear expansion of the meetal of the rod is 2 x 10^-6 per degree C, the period of the pendulum will have percentage increases of A uniform metal rod is used as [...]
A solids floats submerged in a liquid. when the liquid is heated, which of the following is most likely to happen?
03
Oct
A solids floats submerged in a liquid. when the liquid is heated, which of the following is most likely to happen? A solids floats submerged in a liquid. when the liquid is heated which of the following is most likely to happen? October 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
If the length of a cylinder on heating increases by 2 %, the area of its base will increase by
03
Oct
If the length of a cylinder on heating increases by 2 %, the area of its base will increase by If the length of a cylinder on heating increases by 2 % the area of its base will increase by October 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
At some temperature T, a brozone pin is a little large to fit into a hole drilled in a steel block. The change in temperature required for an exact fit is minimum when
03
Oct
At some temperature T, a brozone pin is a little large to fit into a hole drilled in a steel block. The change in temperature required for an exact fit is minimum when a brozone pin is a little large to fit into a hole drilled in a steel block. The change in temperature required [...]
When a bimetallic strip is heated , it (a) does not bend at all
03
Oct
When a bimetallic strip is heated , it (a) does not bend at all it (a) does not bend at all When a bimetallic strip is heated October 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
When a copper ball is heated, the largest percentage increases will occur in its
03
Oct
When a copper ball is heated, the largest percentage increases will occur in its the largest percentage increases will occur in its When a copper ball is heated October 3, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
The planets with radii R 1 and R 2 have densities ρ 1 , ρ 2 respectively. Their atmospheric pressures are p 1 and p 2 respectively. Therefore, the ratio of masses of their atmospheres, neglecting variation of g within the limits of atmosphere is?
03
Oct
The planets with radii R 1 and R 2 have densities ρ 1 , ρ 2 respectively. Their atmospheric pressures are p 1 and p 2 respectively. Therefore, the ratio of masses of their atmospheres, neglecting variation of g within the limits of atmosphere is? neglecting variation of g within the limits [...]
A projectile is fired vertically upwards from the surface of the earth with a velocity kv e where v e is the escape velocity and k<1. If R is the radius of the earth, the maximum height to which it will rise measured from the centre of earth will be (neglect air resistance)
03
Oct
A projectile is fired vertically upwards from the surface of the earth with a velocity kv e where v e is the escape velocity and k<1. If R is the radius of the earth, the maximum height to which it will rise measured from the centre of earth will be (neglect air resistance) [...]
A tunnel has been dug into a solid sphere of non- uniform mass density as shown in the figure. As one moves from A to B , the magnitude of gravitational field intensity
03
Oct
A tunnel has been dug into a solid sphere of non- uniform mass density as shown in the figure. As one moves from A to B , the magnitude of gravitational field intensity A tunnel has been dug into a solid sphere of non- uniform mass density as shown in the figure. As one moves [...]
Two satellites s1 and s2 revolve around a planet in coplanar circular orbits in the same sense. THeri periods of revolution are 1 hour and 8 hour respectively. The radius of the orbit of s1 is 10^4 km. The speed of S2 relative to S1 when they are closest (in km/h ) is
03
Oct
Two satellites s1 and s2 revolve around a planet in coplanar circular orbits in the same sense. THeri periods of revolution are 1 hour and 8 hour respectively. The radius of the orbit of s1 is 10^4 km. The speed of S2 relative to S1 when they are closest (in km/h ) is The change [...]