Sura Guide 11th Physics. We covered all the Sura Guide 11th Physics MCQs in this post for free so that you can practice well for the exam.
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Sura Guide 11th Physics Objective for Students
Which one of the following statements is not correct for light rays?
(a) Light travels at different speeds in different media.
(b) Light travels at almost 300 million meters per second in air.
(c) Light slows down as it leaves a water surface and enters the air.
(d) Light speeds up as it leaves a glass surface and enters the air.
Option c – Light slows down as it leaves a water surface and enters the air
A glass prism splits white light into different colors. This phenomenon is called the dispersion of light by a prism. Which one of the following statements is correct?
(a) Red light will deviate the most, and it is because of the reflection of light.
(b) Violet light will deviate the most, and it is because of the refraction of light.
(c) Red light will deviate the most, and it is because of the refraction of light.
(d) Violet light will deviate the most, and it is because of the reflection of light.
Option b – Violet light will deviate the most, and it is because of the refraction of light
When light is scattered by a molecule, and the frequency of the scattered light is changed, this phenomenon is called:
(a) Rayleigh scattering
(b) Raman effect
(c) Photoelectric effect
(d) Rutherford scattering
Option b – Raman effect
‘Beats’ is a phenomenon that occurs when frequencies of two harmonic waves are:
(a) equal
(b) far apart
(c) multiples of each other
(d) nearly the same
Option d – nearly the same
Which one of the following is the lowest possible temperature?
(a) 0° Celsius
(b) -73° Celsius
(c) -173° Celsius
(d) -273° Celsius
Option d – -273° Celsius
Numerically, two thermometers, one on the Fahrenheit scale and another on the Celsius scale shall read the same at:
(a) -40°
(b) 0°
(c) -273°
(d) 100°
Option a – -40°
Which one of the following colors may be obtained by combining green and red colors?
(a) Blue
(b) Magenta
(c) Pink
(d) Yellow
Option d – Yellow
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