Question :

Radiocarbon is produced in the atmosphere as a result of


A) collision between fast neutrons and nitrogen nuclei present in the atmosphere
B) action of ultraviolet light from the sun on atmospheric oxygen
C) action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
D) lightning discharge in atmosphere

Answer : A

Description :



Related Questions - 1


Radiocarbon is produced in the atmosphere as a result of


A) collision between fast neutrons and nitrogen nuclei present in the atmosphere
B) action of ultraviolet light from the sun on atmospheric oxygen
C) action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
D) lightning discharge in atmosphere

View Answer

Related Questions - 2


Let a thin capillary tube be replaced with another tube of insufficient length then, we find water


A) will overflow
B) will not rise
C) depressed
D) change its meniscus

View Answer

Related Questions - 3


Pick out the scalar quantity


A) force
B) pressure
C) velocity
D) acceleration

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Related Questions - 4


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

View Answer

Related Questions - 5


Magnetism at the centre of a bar magnet is


A) minimum
B) maximum
C) zero
D) minimum or maximum

View Answer