ISC Nootan Physics Class 12 Solutions. We covered all the ISC Nootan Physics Class 12 Solutions MCQs in this post for free so that you can practice well for the exam.
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ISC Nootan Physics Class 12 Objective with Solutions for Students
Tyndall effect is a phenomenon of:
(a) Scattering of light by the colloidal particles.
(b) Refraction of light by the colloidal particles.
(c) Dispersion of light by dust particles.
(d) Refraction of light by dust particles.
Option a – Scattering of light by the colloidal particles
Refraction of light, as it enters from a transparent medium to another, is due to:
(a) Change in temperature of the media.
(b) Change in the amplitude of light.
(c) Change in speed of light.
(d) Internal property of light.
Option c – Change in speed of light
The unit of the ratio between thrust and impulse is the same as that of:
(a) Frequency
(b) Speed
(c) Wavelength
(d) Acceleration
Option a – Frequency
When a light beam falls on a triangular glass prism, a band of colors is obtained. Which one of the following statements is correct in this regard?
(a) Red light bends the most, as the refractive index of glass for red light is greatest.
(b) Red light bends the most, as the refractive index of glass for red light is the lowest.
(c) Violet light bends the most, as the refractive index of glass for violet light is the greatest.
(d) Violet light bends the most, as the refractive index of glass for violet light is the lowest.
Option c – Violet light bends the most, as the refractive index of glass for violet light is the greatest
The image of an object formed by a plane mirror is:
(a) Erect, real, and larger.
(b) Erect, virtual, and the same size.
(c) Inverted, virtual, and the same size.
(d) Inverted, real, and smaller.
Option b – Erect, virtual, and the same size
Which one of the following is not a conservative force?
(a) Frictional force
(b) Electric force
(c) Gravitational force
(d) Spring force
Option a – Frictional force
A negative work is done when an applied force F and the corresponding displacement S are:
(a) Perpendicular to each other.
(b) Parallel to each other.
(c) Anti-parallel to each other.
(d) Equal in magnitude.
Option c – Anti-parallel to each other
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