VIT entrance exam previous years solved question paper

Any buddy, please provide me the VIT entrance exam previous years solved question paper…

As per your request here I am sharing the VIT entrance exam previous years solved question paper:

Two beams of light will not give rise to an interference pattern, if
(a) they are coherent
(b) they have the same wavelength
(c) they are linearly polarized perpendicular to each other
(d) they are not monochromatic

A slit of width a is illuminated with a monochromatic light of wavelength ) from a distant source and the diffraction pattern is observed on a screen placed at a distance D from the slit. To increase the width of the central maximum one should
(a) decrease D
(b) decrease a
(C) decrease
(d) The width cannot be changed

What should be the electric potential to which the electrons need to be accelerated?
(a) 2.5V (b) 5V
(c) 2.5kv (d) 5kV

Which phenomenon best supports the theory that matter has a wave nature?
(a) Electron momentum
(b) Electron diffraction
Cc) Photon momentum
(d) Photon diffraction

The reverse saturation of p-n diode
(a) depends on doping concentrations
(b) depends on diffusion lengths of carriers
(c) depends on the doping concentrations and diffusion lengths
(d) depends on the doping concentrations, diffusion length and device temperature

A radio station has two channels. One is AM at
1020 kHz and the other FM at 89.5 MHz. For good results you will use
(a) longer antenna for the AM channel and shonet for the FM
(b) shorter antenna for the AM channel and longer for the FM
(c) Same length antenna will work for both
(d) Information given is not enough to say which one to use for which

The communication using optical fibres is based on the principle of
(a) total internal reflection
(b) Brewster angle
(c) polarization
(d) resonance

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Answered By StudyChaCha Member

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