## In YDSE, d = , then the total no. of maxima observed upon screen will be In YDSE, d = , then the total no. of maxima observed upon screen will be

Anonymous User Physics Wave Optics 05 May, 2020 60 views

Young's double slit experiment is carried out by using green, red and blue light, one color at a time. The fringe widths recorded are , respectively. Then,

Anonymous User Physics Wave Optics 05 May, 2020 63 views

In the Young's double slit experiment using a monochromatic light of wavelength , the path difference (in terms of an integer n) corresponding to any point having half the peak intensity is

Anonymous User Physics Wave Optics 05 May, 2020 57 views

For destructive interference to take place between two monochromatic light waves of wavelength , the path difference should be

Anonymous User Physics Wave Optics 05 May, 2020 441 views

Two identical light waves, propagating in the same direction, have a phase difference . After they superpose, the intensity of the resulting wave will be proportional to

Anonymous User Physics Wave Optics 05 May, 2020 56 views

The above is a plot of binding energy per nucleon Eb, against the nuclear mass M; A, B, C, D, E, F correspond to different nuclei. Consider four reactions: where ε is the energy released? In which reactions is ε positive?

Anonymous User Physics Atomic Physics 05 May, 2020 66 views

A piece of wire is bent in the shape of a parabola y = kx2 (y-axis vertical) with a bead of mass m on it. The bead can slide on the wire without friction. It stays at the lowest point of the parabola when the wire is at rest. The wire The wire is now accelerated parallel to the x-axis with a constant acceleration a. The distance of the new equilibrium position of the bead, where the bead can stay at rest w.r.t. the wire, from the y-axis is

Anonymous User Physics Laws of Motion and Friction 04 May, 2020 87 views

## What is the angle of friction between two surfaces in contact, if coefficient of friction is What is the angle of friction between two surfaces in contact, if coefficient of friction is Anonymous User Physics Laws of Motion and Friction 04 May, 2020 54 views

A block of mass 2 kg rests on the floor of an elevator, which is moving down with an acceleration ‘g’, then the apparent weight of the block is [take g = 10 m/s2]20

Anonymous User Physics Laws of Motion and Friction 04 May, 2020 277 views

When a lift is moving upward with acceleration of 5 m/s2 then percentage change in the weight of the person in the lift is x%. If the lift is moving down with acceleration 5 m/s2 then percentage change in the weight of
same person is y%. Then the ratio x/y is (g = 10 m/s2)

Anonymous User Physics Laws of Motion and Friction 04 May, 2020 253 views

A U–238 nucleus originally at rest, decays by emitting an alpha-particle, say with a velocity of v m/s. The recoil velocity (in ms–1) of the residual nucleus is

Anonymous User Physics Work Power and Energy 03 May, 2020 61 views

A bullet weighing 10 g and moving with a velocity 800 ms–1 strikes a 10 kg block resting on a frictionless surface. The speed of the block after the perfectly inelastic collision is approximately

Anonymous User Physics Work Power and Energy 03 May, 2020 117 views

Under the action of a force, a 1 kg body moves, such that its position x as a function of time t is given by x= t*t*t / 2,where x is in meter and t is in second.The work done by the force in first 3 second is

Anonymous User Physics Work Power and Energy 03 May, 2020 60 views

The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap in (eV) for the semiconductor is

Anonymous User Physics Electronic Devices 03 May, 2020 69 views

The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap in (eV) for the semiconductor is

Anonymous User Physics Electronic Devices 03 May, 2020 60 views