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Physics

Physics
Lens is made up of

Cobalt glass
Flint glass
Ordinary glass
Pyrex glass

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Physics
In the Earth, the weight of a body is maximum at the

South Pole
Surface
North Pole
Equator

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Physics
What is the wavelength of visible spectrum ?

1300 A°–3000 A°
3900 A° – 7600 A°
8500 A° – 9800 A°
7800 A° – 8000 A°

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Physics
Large astronomical telescopes always use as objective

combinations of lenses
lens
None of these
mirror

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Physics
Fiber optics cable used in communication, works on the principle of

Diffuse reflection of light
Refraction of light
Total internal reflection of light
Regular reflection of light

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Physics
For every action, there is an equal and opposite reaction, is Newton's

Fourth law
Third law
Second law
First law

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MORE MCQ ON Physics

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