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Physics

Physics
Echo is heard due to

Reflection
Interference
Scattering
Refraction

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Physics
The magnifying power of an astronomical telescope can be decreased by

Decreasing the focal length of the eyepiece
Increasing the focal length of the eyepiece
None of these
Increasing the focal length of the objective

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Physics
The group of solar cells joined together in a definite pattern is called a

Battery
Solar cooker
Solar heater
Solar cell panel

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Physics
Beta rays emitted by a radioactive material are

Charged particles emitted by nucleus
Electromagnetic radiations
Neutral particles
The electrons orbiting around the nucleus

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Physics
Carbon Arc lamps are commonly used in

Photography
Vehicles
Domestic lighting
Cinema projectors

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Physics
What is the reason for formation of Mirage in desert?

Reflection of light
Total internal reflection of light
Refraction of light
Both Refraction and Total internal reflection of light

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MORE MCQ ON Physics

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