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Physics

Physics
Amount of water vapour in the atmosphere is measured in terms of

Droplets
Humidity
Smog
All of these

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Physics
The different colours of different stars are due to the variation of

Density
Pressure
Radiation from them
Temperature

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Physics
Two electric bulbs marked 25W – 220V and 100W – 220V are connected in series to a 440Vsupply. Which of the bulbs will fuse?

Both
25 W
100 W
Neither

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Physics
One light year is equal to

8 trillion miles
2 trillion miles
9 trillion miles
6 trillion miles

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Physics
Formation of shadows can be explained by

Refraction
Total internal reflection
Reflection
Rectilinear propagation of light

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Physics
The basic reason for the extraordinary sparkle of suitably cut diamond is that

It is very hard
It has a very high refractive index
It has well defined cleavage planes
It has a very high transparency

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MORE MCQ ON Physics

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