Question Answers
Sahay Sir > Question Answers
A body of mass 50 kg is rest on an inclined plane of angle 30 degree with the horizontal. The coefficient of friction between the body and the plane is
11
Sep
A body of mass 50 kg is rest on an inclined plane of angle 30 degree with the horizontal. The coefficient of friction between the body and the plane is A body of mass 50 kg is rest on an inclined plane of angle 30 degree with the horizontal. The coefficient of friction between the [...]
In a thin spherical fish bowl of radius 10 cm filled with water of refractive index (4/3) , there is a small fish at a distance 4 cm from the centre C as shown in Figure. Where will the fish appear to be, if seen from (a) E
11
Sep
In a thin spherical fish bowl of radius 10 cm filled with water of refractive index (4/3) , there is a small fish at a distance 4 cm from the centre C as shown in Figure. Where will the fish appear to be, if seen from (a) E if seen from (a) E In a [...]
A small block of mass of 0. kg lies on a fixed inclined plane PQ which makes an angle θ with the horizontal. A horizontal force of 1 N acts on the block through its center of mass as shown in `the figure. The block remains stationary if (take g=10m/s^2)
11
Sep
A small block of mass of 0. kg lies on a fixed inclined plane PQ which makes an angle θ with the horizontal. A horizontal force of 1 N acts on the block through its center of mass as shown in `the figure. The block remains stationary if (take g=10m/s^2) In the figure shown the [...]
Estimate the average kinetic energy of hydrogen atoms ( or molecules) at room temperature and use the result to explain why nearly all H atoms are in the ground state at room temperature and hence emit no light.
11
Sep
Estimate the average kinetic energy of hydrogen atoms ( or molecules) at room temperature and use the result to explain why nearly all H atoms are in the ground state at room temperature and hence emit no light. Compare Z1 and Z2. September 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]
A slab of a material of refractive index 2 shown in the figure, has a curved surface APB of radius of curvature 10cm and a plane surface CD. On the left oa APB is air and on the right of CD is water with refractive indices as given in the figure. An object O is placed at a distance of 15cm from the pole P as shown. The distance of the final image of O from P, as viewed from the left is
11
Sep
A slab of a material of refractive index 2 shown in the figure, has a curved surface APB of radius of curvature 10cm and a plane surface CD. On the left oa APB is air and on the right of CD is water with refractive indices as given in the figure. An object O is [...]
Tags:
A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is C. the maximum possible deviation of the way will be ,
A slab of a material of refractive index 2 shown in the figure ,
When light is incident on a medium at angle i and refracted into a second medium at an angle r ,
An object is gently placed on a long conveyor belt moving with 11ms^−1. If the coefficient of friction is 0.4, then the block will side in the belt up to a distance of
11
Sep
An object is gently placed on a long conveyor belt moving with 11ms^−1. If the coefficient of friction is 0.4, then the block will side in the belt up to a distance of An object is gently placed on a long conveyor belt moving with 11ms^−1. If the coefficient of friction is 0.4 then the [...]
The K-absorption edge of an unknown element is 0.171 A. (a) Identify the element. (b) Find the average wavelengths of the K alpha, K beta, and K gama lines. (c) If a 100 eV electron strikes the target of this element
11
Sep
The K-absorption edge of an unknown element is 0.171 A. (a) Identify the element. (b) Find the average wavelengths of the K alpha, K beta, and K gama lines. (c) If a 100 eV electron strikes the target of this element and K gama lines. (c) If a 100 eV electron strikes the target of [...]
A parallel beam of light emerges from the opposite surface when a point source of light lies at the surface of the sphere. The refractive index of the sphere is
11
Sep
A parallel beam of light emerges from the opposite surface when a point source of light lies at the surface of the sphere. The refractive index of the sphere is A parallel beam of light emerges from the opposite surface when a point source of light lies at the surface of the sphere. The refractive [...]
A given object takes n times as much time to slide down at 45 degree rough incline as it takes to slide down a perfectly smooth 45 degree incline. The coefficient of kinetic friction between the object and the incline is given by :
11
Sep
A given object takes n times as much time to slide down at 45 degree rough incline as it takes to slide down a perfectly smooth 45 degree incline. The coefficient of kinetic friction between the object and the incline is given by : In the figure shown the tension in the horizontal cord is [...]
An X-ray tube with a copper target is found to be emitting lines other than those due to copper. The K alpha line of copper is known to have wavelength 1.5405 A and the other two K alpha lines observed
11
Sep
An X-ray tube with a copper target is found to be emitting lines other than those due to copper. The K alpha line of copper is known to have wavelength 1.5405 A and the other two K alpha lines observed Compare Z1 and Z2. September 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]