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When current is passed through gas or va...

When current is passed through gas or vapour stored at low pressure radiation of definite ...... is produced which is called radiation spectrum.

A

frequency

B

velocity

C

numbers

D

wavelengths

Text Solution

Verified by Experts

The correct Answer is:
D
wavelengths
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Knowledge Check

  • When current passing through a coil is made doubled, its self inductance ......

    A
    becomes doubled
    B
    becomes half
    C
    becomes one fourth
    D
    remains constant

  • When current passing through a coil increases, direction of induced emf is

    A
    in the direction of existing current.
    B
    in the opposite direction of existing current
    C
    perpendicular to the flow of current.
    D
    indefinite

  • When 10 A current passes through 12 Omega resistance, maximum voltage across it is ……..

    A
    20 V
    B
    90 V
    C
    169.68 V
    D
    120 V

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