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Statement 1: When a beam of highly energ...

Statement 1: When a beam of highly energetic neutrons is incident on a tungsten target, no X-rays will be produced.
Statement 2: Neutrons do not exert any electrostatic force on electrons or nucleus of an atom.

A

Statement-1 is true, Statement-2: is true, Statement-2 is a correct explanation for Statement-1.

B

Statement-1 is true, Statement-2: is true, Statement-2 is NOT a correct explanation for Statement-1.

C

Statement-1 is true but statement-2 is false

D

Statement-1 is false, Statement-2 is true

Text Solution

Verified by Experts

The correct Answer is:
D
Neutron will knock out electrons in target leading to production of characterstic X-ray hence statement-1 is false.
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Statement-2: When a beam of highly energetic neutrons is incident on a tungsten target, no X -rays will be produced. Statement-2: Neutrons do not exert any electrostatics force on electrons or nucleus of an atom

Statement -1: When applied potential difference Between cathode and anode is increased in a cooliedge tube , cute off wavelength decreases. Statement-2: Cut off wavelength for X -rays depend on atomic number of target material.

Knowledge Check

  • Statement-1: Gamma rays are more energetic than X-rays. Statement-2: Gamma rays are of nuclear origin but x-rays are produced due to sudden deceleration of high energy electrons while falling on metal of high atomic number.

    A
    Statement-1 is true, Statement-2 is true, Statement-2 is a correct explanation of Statement-1.
    B
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    C
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    D
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  • Statement-I : When X-ray incident on metal, the ejection of electron shows the particle nature of X-ray. Statement-II : X-ray is positively charged particle.

    A
    If both Statement- I and Statement- II are true, and Statement - II is the correct explanation of Statement– I.
    B
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  • Statement 1: Though light of a single frequency (monochromatic light) is incident on a metal, the kinetic energies of emitted photoelectrons are not equal. Statement 2: The energy of electrons just after they absorb photons incident on metal surface may be lost in collision with other atoms in the metal before the electron is ejected out of the metal.

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    Statement-1 is true, Statement-2: is true, Statement-2 is a correct explanation for Statement-1.
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