X - Rays (AIIMS Physics): Questions 1 - 4 of 7

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Question number: 1

» X - Rays » Production of X-Ray

Appeared in Year: 2006

MCQ▾

Question

X-rays were discovered by - [AIIMS]

Choices

Choice (4) Response

a.

Meghnad Saha

b.

Wilhelm K. Roentgen

c.

Sir C. V. Raman

d.

H. Kissinger

Question number: 2

» X - Rays » Soft and Hard X - Ray

Appeared in Year: 2006

MCQ▾

Question

Hard X-rays for the study of fractures in bones should have a minimum wavelength of 10-11 m. The accelerating voltage for electrons in X-rays machine should be – [AIIMS]

Choices

Choice (4) Response

a.

Equation

b.

100 kV

c.

Equation

d.

Equation

Question number: 3

» X - Rays » Continuous and Characteristic X - Ray

Appeared in Year: 2003

MCQ▾

Question

Characteristic X-rays are produced due to [AIIMS]

Choices

Choice (4) Response

a.

Heating of the target.

b.

Transition of electrons from higher to lower electronic orbits in an atom.

c.

Transfer of momentum in collision of electrons with target atoms.

d.

Transfer of energy in collision of electrons with atoms in the target.

Question number: 4

» X - Rays » Properties and Uses of X - Ray

Appeared in Year: 2006

Assertion-Reason▾

Assertion (Ꭺ)

Standard optical diffraction gratings cannot be used for discriminating between different X-rays wavelengths.

Reason (Ꭱ)

The grating spacing is not of the order of X-rays wavelengths.

Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are false

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