Practice Questions on General Science - Physics
General Knowledge

Section-1: General Science - Physics Question - 16

Q16.

Optical fibre works on the principle of:

A.

principle of refraction

B.

interference

C.

scattering

D.

total internal reflection

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Section-1: General Science - Physics Question - 17

Q17.

The unit usually used in professional astrometry is:

A.

parsec

B.

light year

C.

Hubble length

D.

none

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Section-1: General Science - Physics Question - 18

Q18.

The first jet airliner introduced in 1952 was:

A.

Boeing 707

B.

De Havilland Comet

C.

Heinkel He 178

D.

Messerschmitt Me 262

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Section-1: General Science - Physics Question - 19

Q19.

Zero electrical DC resistance is a characteristic of:

A.

Insulators

B.

Semiconductors

C.

Superconductors

D.

Metals

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Section-1: General Science - Physics Question - 20

Q20.

Tensors used in anisotropic media are:

A.

Electric susceptibility

B.

Diffusion tensor imaging

C.

Electromagnetic tensor

D.

Stress–energy tensor

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