Nootan Class 12 Physics Solutions. We covered all the Nootan Class 12 Physics Solutions MCQs in this post for free so that you can practice well for the exam.
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Nootan Class 12 Physics Objective with Solutions for Students
Which one of the following devices changes low voltage alternating current to high voltage alternating current and vice versa?
(a) Generator
(b) Motor
(c) Transformer
(d) Vibrator
Option c – Transformer
An optical illusion that occurs mainly in deserts during hot summer is based on the principle of:
(a) Reflection
(b) Interference
(c) Dispersion
(d) Total internal reflection
Option d – Total internal reflection
At which place Earth’s magnetic field becomes horizontal?
(a) Magnetic meridian
(b) Magnetic equator
(c) Geographical pole
(d) Tropic of Cancer
Option b – Magnetic equator
The speed of a body that has a Mach number more than 1 is:
(a) supersonic
(b) subsonic
(c) 300 m/s
(d) about 10 m/s
Option a – supersonic
Rutherford’s alpha-particle scattering experiment was responsible for the discovery of:
(a) Electron
(b) Proton
(c) Nucleus
(d) Helium
Option c – Nucleus
A Kelvin thermometer and a Fahrenheit thermometer both give the same reading for a certain sample. What would be the corresponding reading in a Celsius thermometer?
(a) 574
(b) 301
(c) 273
(d) 232
Option b – 301
An image formed by a concave mirror on a screen is called…
(a) Virtual image
(b) Real image
(c) Inverted image
(d) Erect image
Option b – Real image
The distance-time graph for the motion of an object moving with a constant speed is a…
(a) Dot
(b) Circle
(c) Straight Line
(d) Curve
Option c – Straight Line
Convex and concave mirrors are examples of:
(a) plane mirrors
(b) spherical mirrors
(c) inverted mirror
(d) erect mirror
Option b – spherical mirrors
The frictional force exerted by fluids is also called …..
(a) drag
(b) buoyancy
(c) upthrust
(d) convection
Option a – drag
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