Monday, 28 August 2017

IPU - BTech Semester 1 - Engineering Physics (Muliple Choice Questions)

Engineering Physics
(Muliple Choice Questions)

BTech Semester 1 

IPU - BTech Semester 1 - Engineering Physics (Muliple Choice Questions)


Coloured appearance of coated lens of a Camera is due to the optical phenomenon of

(a) Interference
(b) Diffraction
(c) Scattering
(d) Dispersion


Newton’s rings are locus of points of

(a) equal inclination
(b) equal thickness
(c) both equal inclination and equal thickness
(d) equal inclination and unequal thickness


Single slit diffraction pattern is observed if the incident light wavefront is

(a) Elliptical
(c) Cylindrical
(b) Spherical
(d) Plane




The resolving power of a plane transmission grating increases with increasing

(a) Grating element only
(b) Order of the spectrum only
(c) Total number of ruling on the grating only
(d) Both order of the spectrum and total number of rulings on the grating


Which of the following waves cannot be polarized?

(a) Radiowaves
(b) Light waves
(c) Acoustic waves
(d) X-rays


The wavelengths produced by a He-Ne laser correspond to the transition in

(a) Helium
(b) Neon
(c) Both He and Ne
(d) Neither He nor Ne


The poynting vector has the same dimensions as that of

(a) Electric current density
(b) Electromagnetic power density
(c) Electric field
(d) Change density


Dielectric losses may occur due to 

(a) Radio activity
(b) Polarization
(c) Ionisation
(d) Conductivity


With increase in velocity of a particle its relativistic mass

(a) Decreases very slowly
(b) Increases
(c) Sometime decreases and increases depending on the nature of the particle
(d) Decrease rapidly


Which of the following materials exhibits piezo- electric effect?

(a) Iron
(b) Aluminum
(c) Quartz
(d) Copper


Expected Answers
(a) Interference
(b) equal thickness
(d) Plane
(d) Both order of the spectrum and total number of rulings on the grating
(c) Acoustic waves
(a) Helium
(d) Change density
(d) Conductivity
(b) Increases
(c) Quartz

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