Nootan Physics Class 12 Solutions. We covered all the Nootan Physics Class 12 Solutions MCQs in this post for free so that you can practice well for the exam.
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Nootan Physics Class 12 Objective with Solutions for Students
Ventilators are provided at the top of the room:
(a) to bring oxygen for breathing.
(b) so that sunlight may enter the room.
(c) to maintain convectional currents to keep the air fresh in the room.
(d) to provide an outlet for carbon dioxide.
Option c – to maintain convectional currents to keep the air fresh in the room
Two cars, passing each other at high speed, are in danger of sideswiping because:
(a) of the increase in air pressure in the space between them.
(b) of decrease in the velocity of air molecules between them.
(c) of decrease in air pressure in the space between them.
(d) of the increase in the velocity of air molecules between them.
Option c – of decrease in air pressure in the space between them
Which one of the following is NOT true for an electromagnetic wave?
(a) Electromagnetic wave transports energy and momentum.
(b) Electromagnetic waves can be polarized and reflected.
(c) Electromagnetic wave is longitudinal.
(d) Electromagnetic wave propagation is described by the varying electric and magnetic fields.
Option c – Electromagnetic wave is longitudinal
Which one of the following is NOT an electromagnetic wave?
(a) Lightwave
(b) Radio wave
(d) Microwave
Brilliance of diamond is due to:
(a) interference of light.
(b) diffraction of light.
(c) polarization of light.
(d) total internal reflection of light.
Option d – total internal reflection of light
When a beam of white light is allowed to fall on a prism, the maximum deviation of the emerging light occurs for:
(a) red light.
(b) violet light.
(c) yellow light.
(d) blue light.
Option b – violet light
Which one of the following phenomena CANNOT be exhibited by sound waves?
(a) Reflection
(b) Refraction
(c) Interference
(d) Polarisation
Option d – Polarisation
Good absorbers of heat are:
(a) poor emitters.
(b) non-emitters.
(c) good emitters.
(d) highly polished.
Option c – good emitters
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