Dual Nature of Radiation and Matter Test

Result

Dual Nature of Radiation and Matter Test - 36

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Weekly Quiz Competition

Question 1
4 / -1

In the following diagram if V₁ > V₂ then........

A

B

C

D

Solution
Question 2
4 / -1

A point source of light is used n an experiment on photoelectric effect. Which of the following curves best represent the variation of photo current (i) with distance (d) of the source from the emitter.

A
a

B
b

C
c

D
d

Solution
Question 3
4 / -1

In a parabola spectrograph, the velocities of four positive ions P, Q, R and S are u₁, u₂, u₃ and u₄ respectively. Then

A
V₁ > V₂ > V₃ > V₄

B
V₁ < V₂ < V₃ < V₄

C
V₁ = V₂ = V₃ = V₄

D
V₁ << V₂ << V₃ << V₄

Solution
Question 4
4 / -1

In Thomson spectrograph experiment, four positive ions P, Q, R and S are situated on Y-X curve a shown in the figure.

A
The specific charge of R and S are same

B
The masses of P and S are same

C
The specific chrage of Q and R are same

D
The velocities of R and S are same
Question 5
4 / -1

Kinetic energy of photo electron E_K changes with frequency (f) of light. Which of the following graph represents this emission ?

A

B

C

D
Question 6
4 / -1

Which of the following graph shows change in momentum of particle which de-Broglie wavelength ?

A

B

C

D
Question 7
4 / -1

In a photocell, the curve for current 1 versus potential difference V is best represented by Fig.

A

B

C

D
Question 8
4 / -1

The curves (a), (b), (c) and (d) show the variation between the applied potential difference (V) and the photoelectric current (i), at two different intensities of light (I₁ > I₂) In which figure is the correct variation shown

A

B

C

D

Solution
Question 9
4 / -1

Millikan\'s oil-drop experiment established that

A
Electric charge depends on velocity Specific charge of electron is 1.76 × 10¹¹ C kg^–1

B
Electron has wave nature

C
Electric charge is quantized

D
Electron has particle nature
Question 10
4 / -1

The cathode rays have particle nature because of the fact that

A
They can propagate in vacuum

B
They are deflected by electric and magnetic fields

C
They produced fluorescence

D
They cast shadows