out of the following, which is not emitted by radioactive substance?

A) Electrons
B) Electromagnetic radiations
C) Alpha particles
D) Neutrons

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Nuclear sizes are expressed in a unit named.

A) Fermi
B) angstrom
C) newton
D) tesla

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Of the following properties of a wave, the one that is independent of the other is its

A) amplitude
B) velocity
C) wavelength
D) frequency

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Sound waves in air are

A) transverse
B) longitudinal
C) electromagnetic
D) polarised

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Light year is a unit of

A) time
B) distance
C) light
D) intensity of light

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