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Physics

Physics
Radiocarbon dating technique is used to estimate the age of

monuments
rocks
soil
fossils

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Physics
The energy of a photon, whose momentum is 10 MeV/c, where c is the speed of light, is given by

10 MeV
0.1 MeV
100 MeV
1 MeV

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Physics
When an electric bulb breaks, there is an explosive sound. That is due to

The compressed gases inside rushing out suddenly
The air outside rushing in to fill the vacuum inside the bulb
The chemical reaction between the gases inside the bulb
None of these

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Physics
If the distance between Sun and Earth becomes double, then the gravitational force on Earth will be

Half
One Fourth
Double
Same

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Physics
Vehicles use ________ to see the objects coming from behind.

Concave lens
Convex lens
Convex mirror
Concave mirror

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Physics
At what temperature (in degree Celsius), the numerical values on Celsius and Fahrenheit scales become equal?

–40
–273
40
273

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