Dual Nature of Radiation and Matter Test

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Dual Nature of Radiation and Matter Test - 94

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Weekly Quiz Competition

Question 1
4 / -1

Penetrating power of X-rays can be increased by

A
Increasing the potential difference between anode and cathode

B
Decreasing the potential difference between anode and cathode

C
Increasing the cathode filament current

D
Decreasing the cathode filament current
Question 2
4 / -1

K_α characteristic X-ray refers to the transition

A
n = 2 to n = 1

B
n = 3 to n = 2

C
n = 3 to n = 1

D
n = 4 to n = 2
Question 3
4 / -1

The wavelength of X-rays is

A
2000 Å

B
2 Å

C
1 mm

D
1 cm
Question 4
4 / -1

For the structural analysis of crystals, X-rays are used because

A
X-rays have wavelength of the order of interatomic spacing

B
X-rays are highly penetrating radiations

C
Wavelength of X-rays is of the order of nuclear size

D
X-rays are coherent radiations
Question 5
4 / -1

The essential distinction between X-rays and γ-rays is that

A
γ-rays have smaller wavelength than X-rays

B
γ-rays emanate from nucleus while X-rays emanate from outer part of the atom

C
γ-rays have greater ionizing power than X-rays

D
γ-rays are more penetrating than X-rays
Question 6
4 / -1

The wavelength of X-rays decreases, when

A
Temperature of target is increased

B
Intensity of electron beam is increased

C
K.E. of electrons striking the target is increased

D
K.E. of electrons striking the target is decreased

Solution
Question 7
4 / -1

What determines the hardness of the X-rays obtained from the Coolige tube ?

A
Current in the filament

B
Pressure of air in the tube

C
Nature of target

D
Potential difference between cathode and target
Question 8
4 / -1

The most penetrating radiation out of the following is

A
X-rays

B
β-rays

C
α-particles

D
γ-rays
Question 9
4 / -1

On increasing the number of electrons striking the anode of an X-rays tube, which one of the following parameters of the resulting X-rays would increase?

A
Penetration power

B
Frequency

C
Wavelength

D
Intensity
Question 10
4 / -1

Hard X-rays for the study of fractures in bones should have a minimum wavelength of 10^–11m. The accelerating voltage for electrons in X-ray machineshould be

A
< 124.2 kV

B
> 124.2 kV

C
Between 60 kV and 70 kV

D
= 100 kV

Solution

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Re-Attempt Weekly Quiz Competition

Dual Nature of Radiation and Matter Test - 94

Result

Dual Nature of Radiation and Matter Test - 94

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Question 1

Increasing the potential difference between anode and cathode

Decreasing the potential difference between anode and cathode

Increasing the cathode filament current

Decreasing the cathode filament current

Question 2

n = 2 to n = 1

n = 3 to n = 2

n = 3 to n = 1

n = 4 to n = 2

Question 3

2000 Å

2 Å

1 mm

1 cm

Question 4

X-rays have wavelength of the order of interatomic spacing

X-rays are highly penetrating radiations

Wavelength of X-rays is of the order of nuclear size

X-rays are coherent radiations

Question 5

γ-rays have smaller wavelength than X-rays

γ-rays emanate from nucleus while X-rays emanate from outer part of the atom

γ-rays have greater ionizing power than X-rays

γ-rays are more penetrating than X-rays

Question 6

Temperature of target is increased

Intensity of electron beam is increased

K.E. of electrons striking the target is increased

K.E. of electrons striking the target is decreased

Solution

Question 7

Current in the filament

Pressure of air in the tube

Nature of target

Potential difference between cathode and target

Question 8

X-rays

β-rays

α-particles

γ-rays

Question 9

Penetration power

Frequency

Wavelength

Intensity

Question 10

< 124.2 kV

> 124.2 kV

Between 60 kV and 70 kV

= 100 kV

Solution

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