Choose the correct options for the following questions.
According to special theory of relativity, mass and energy are:
Difficulty: Easy
A:
Different entities
B:
Related as $E=mc^{2}$
C:
Inter-convertible
D:
All
It implies from $\triangle m=\frac{\triangle E}{c^{2}}$ that to get even a small increase in mass of an object, we require:
Difficulty: Easy
A:
Small changes in energy
B:
Large changes in energy
C:
Very small changes in energy
D:
Any of these
By taking the relatively effects into account, the location and speed anywhere on Earth can be determined to an accuracy of about:
Difficulty: Easy
A:
$2 ms^{-1}$
B:
$20 cms^{-1}$
C:
$2 cms^{-1}$
D:
$20 ms^{-1}$
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