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If the current in the circuit for heatin...

If the current in the circuit for heating the filament is increased, the cutoff wavelength

A

will increase

B

will decrease

C

will remain unchanged

D

will change

Text Solution

Verified by Experts

The correct Answer is:
C
The cut off wavelength depends on the accelerating potential difference which is unchanged. Hence, the wavelength will remain unchanged.
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RESONANCE ENGLISH-ATOMIC PHYSICS-Exercise ( Part II : Only one one correct type)
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  2. Ionisation energy of a hydrogen-like ion A is greater than that of ano...

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  3. Which energy state of doubly ionized lithium Li^(++) has the same ener...

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  4. In Bohr's model of hydrogen atom a(0) is the radius of the ground stat...

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  5. If an orbital electron of the hydrogen atom jumps from the ground stat...

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  6. In the Bohr model of the hydrogen atom, the ratio of the kinetic energ...

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  7. The innermost orbit of the hydrogen atom has a diameter of 1.06Å what ...

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  8. Three photons coming from excited atomic-hydrogen sample are picked up...

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  9. The transition from the state n = 4 " to " n = 3 in a hydrogen like at...

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  10. Ionization potential of hydrogen atom is 13.6eV . Hydrogen atoms in th...

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  11. Energy levels A, B, C of a certain atom corresponding to increasing va...

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  12. For the first member of Balmer series of hydrogen spectrum, the wavele...

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  13. The frequency of the first line in Lyman series in the hydrogen spect...

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  14. An electron of kinetic energy K collides elastically with a stationary...

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  15. Consider a photon of continuous X-ray coming from a Coolidge tube. Its...

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  16. If the current in the circuit for heating the filament is increased, t...

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  17. The characterstics X-ray spectrum is emitted due to transition of

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  18. When an ultraviolet light is incident on a photocell , its stopping po...

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  19. In Davosson-Germer experiment, the filament emits

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  20. In the Davisson and Germer experiment, the velocity of electrons emitt...

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