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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Pa(Pascal) is the unit for

A) thrust
B) pressure
C) frequency
D) conductivity

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The absorption of ink by blotting paper involves

A) viscosity of ink
B) capillary action phenomenon
C) diffusion of ink through the blotting
D) siphon action

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Siphon will fail to work if

A) the densities of the liquid in the two vessels are equal
B) the level of the liquid in the two vessels are at the same height
C) both its limbs are of unequal length
D) the temperature of the liquids in the two vessels are the same

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