Nootan ISC Physics Class 12 Solutions. We covered all the Nootan ISC Physics Class 12 Solutions MCQs in this post for free so that you can practice well for the exam.
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Nootan ISC Physics Class 12 Objective with Solutions for Students
The sun is seen a little before it rises and for a short while after it sets. This is because of:
(a) Total internal reflection
(b) Atmospheric refraction
(c) Apparent shift in the direction of the sun
(d) Dispersion
Option b – Atmospheric refraction
When a ball bounces off the ground, which of the following changes suddenly? (Assume no loss of energy to the floor)
(a) Its speed
(b) Its Momentum
(c) Its kinetic energy
(d) Its potential energy
Option b – Its Momentum
If an object moves at a non-zero constant acceleration for a certain interval of time, then the distance it covers in that time:
(a) Depends on its initial velocity.
(b) Is independent of its initial velocity.
(c) Increases linearly with time.
(d) Depends on its initial displacement.
Option a – Depends on its initial velocity
Soaps clean surfaces according to the principles based on:
(a) Viscosity
(b) Floatation
(c) Elasticity
(d) Surface tension
Option d – Surface tension
The loudness of sound depends upon the:
(a) Velocity of sound waves in the medium
(b) Amplitude of the sound waves.
(c) Frequency of the sound waves.
(d) Frequency and velocity of the sound waves.
Option b – Amplitude of the sound waves
Compared to audible sound waves, ultrasound waves have:
(a) Higher speed
(b) Higher frequency
(c) Longer wavelength
(d) Both higher speed and frequency
Option d – Both higher speed and frequency
The temperature of a place on a sunny day is 113 in Fahrenheit scale. The Kelvin scale reading of this temperature will be:
(a) 318 K
(b) 45 K
(c) 62.8 K
(d) 335.8 K
Option a – 318 K
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