Physics

Q71

In obtaining an X-ray photograph of our hand we use the principle of______________?

Q72

The famous book “Causes of Indian revolt” was written by __________?

Q77

Maximum frequency in the spectrum from X-ray tube is directly proportional to the______________?

Q79

If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will?

Q80

Semi-conductors with donor atoms and free electrons belong to the type________________?

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