NAT I Engineering Physics With Answers

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NAT I Engineering Physics

Sr. # Questions Answers Choice
1 Absolute temperature can be calculated by Mean square velocity Motion of the molecule Both (A) and (B) None of these
2 Which of the following is not thermo dynamical function? Enthalpy Work done Gibb's energy Internal energy
3 At constant volume temperature is increased then Collision on walls will be less Number of collisions per unit time will increase Collisions will be in straight lines Collisions will not change
4 The number of translation degrees of freedom for a diatomic gas is 2 3 5 6
5 Relation between pressure (P) and energy (E) of a gas is P = 2/3 E P = 1/3 E P = 3/2 E P = 3 E
6 Huygen's wave theory of light cannot explain Diffraction Interference Polarization Photoelectric effect
7 The contrast in the fringes in any interference pattern depends on Fringe width Intensity ratio of the sources Distance between the slits Wavelength
8 If yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic blue light of the same intensity Fringe width will decrease Fringe width will increase The fringe width will remain unchanged Fringes will become less intense
9 Which one of the following phenomena is not explained by Huygen's construction of wavefront? Refraction Reflection Diffraction Origin of spectra
10 Light appears to travel in straight lines since It is not absorbed by the atmosphere It is reflected by the atmosphere Its wavelength is very small Its velocity is very large
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