Wave motion Questions

Which of the following figures represent the variation of particle momentum and the associated de-Broglie wavelength ?

The de-Broglie wavelength of a neutron in thermal equilibrium with heavy water at a temperature T (Kelvin) and mass m, is :-

The photoelectric threshold wavelength of silver is 3250 × 10-10m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536×10-10 m is :- (Given h =...

The ratio of wavelengths of the last line of Balmer series and the last line of Lyman series is :-

A uniform rope of length L and mass m1, hangs vertically from a rigid support. A block of mass m2 isattached to the free end of the rope. A transverse pulse of wavelength λ1 is produced at the lo...

The intensity at the maximum in a Young’s double slit experiment is I0. Distance between two slits is d = 5λ, where λ is the wavelength of light used in the experiment. What will be th...

When a metallic surface is illuminated with radiation of wavelength λ, the stopping potential is V. If the samesurface is illuminated with radiation of wavelength 2λ, the stopping potential ...

Given the value of Rydberg constant is 107 m-1, the wave number of the last line of the Balmer series in hydrogen spectrum will be:

In Young's double slit experiment the separation d between the slits is 2 mm, the wavelength λ of the light used is 5896 Å and distance D between the screen and slits is 100 cm. It is f...

The displacement y of a particle in a medium can be expressed as y = 10-6 sin(100t + 20x + π/4)m, where t is in seconds and x in meter. The speed of the wave is...

The displacement y of wave travelling in the x-direction is given by y = 10-4 sin metres, where x is expressed in metres and t in seconds. The speed of the wave-motion, in ms-1 is...

The displacement of a particle varies according to the relation x = 4(cos πt + sin πt). the amplitude of the particle is

A metal wire of linear mass density of 9.8 gm is stretched with a tension of 10 kg-wt between two rigid supports 1 metre apart. The wire passes at its middle point between the poles of a per magnet an...

To demonstrate the phenomenon of interference we require two soruces which emit radiation of

Length of a string tied to two rigid supports is 40 cm. Maximum length (wave length in cm) of a stationary wave produced on it is

A wave y = asin(ω - kx)on a string meets with another wave producing a node at x = 0. Then the equation of the unknown wave is

Formation of covalent bonds in compounds exhibits

A transverse sinusoidal wave moves along a string in the positive x-direction at a speed of 10 cm/s. The wavelength of the wave is 0.5 m and its amplitude is 10 cm. At a particular time t, the snap -s...

Electrons with de-Broglie wavelength λ fall on the target in an X-ray tube. The cut-off wavelength of the emitted Xrays is

An X-ray tube with Cu target is operated at 25 kV. The glancing angle for a NaCl. Crystal for the Cu Kα line is 15.8o. Find the wavelength of this line. (d for NaCl = 2.82, h = 6.62 × 10-27 ...