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Physics

Physics
Who among the following discovered X-rays?

Marie Curie
J.J Thomson
W.C Roentgen
James Chadwick

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Physics
A rubber ball is dropped from a height of 2 metres. To what height will it rise if there is no loss of energy/velocity after rebounding ?

1 metre
3 metres
2 metres
4 metres

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Physics
If the velocity of a body is halved its kinetic energy ________

Become 4 times
Becomes half
Is also doubled
Becomes 1/4 th

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Physics
The bending of light when it passes around a corner or a slit is due to ________

Diffraction
Reflection
Total internal reflection
Refraction

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Physics
The energy of a photon varies directly with its

Wave length
Speed
Frequency
None of these

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Physics
After reflection from a plane mirror the word will look like.

AWBULANCE
ECNALUBMA
AMBULANCE
AMBULA CE

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