Dual Nature of Radiation and Matter Test

Result

Dual Nature of Radiation and Matter Test - 35

Score
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Rank
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TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

If α - particle and proton have same velocities, the ratio of de Broglie wavelength of α -particle and proton is ....

A

B

C
1

D
2
Question 2
4 / -1

If α - particle and proton are accelerated through the same potential difference, then the ratio of de Brogile wavelength of α - particle and proton is ........

A

B

C

D

Solution
Question 3
4 / -1

Read the paragraph carefully and select the proper choice from given multiple choices. According to Einstein when a photon of light of frequency f or wavelength λ is incident on a photo sensitive metal surface of work function Ø . Where Ø < hf (here h is Plank\'s constant) then the emission of photo-electrons place takes place. The maximum K.E. of emitted photo electrons is given by K_max = hf – Ø . If the there hold frequency of metal is f₀ then hf₀ = Ø .
A metal of work function 3.3 eV is illuminated by light of wave length 300 nm. The maximum K.E > of photo-electrons is  ........eV. (h = 6.6 × 10^–34 J.sec)

A
0.825

B
0.413

C
1.32

D
1.65
Question 4
4 / -1

Read the paragraph carefully and select the proper choice from given multiple choices. According to Einstein when a photon of light of frequency f or wavelength λ is incident on a photo sensitive metal surface of work function Ø . Where Ø < hf (here h is Plank\'s constant) then the emission of photo-electrons place takes place. The maximum K.E. of emitted photo electrons is given by K_max = hf – Ø . If the there hold frequency of metal is f₀ then hf₀ = Ø .
The threshold frequency f_o = ...........× 10¹⁴ Hz.

A
4.0

B
4.2

C
8.0

D
8.4
Question 5
4 / -1

A
A → p, B → q, C → r, D → s

B
A → q, B → r, C → s, D → p

C
A → r, B → p, C → q, D → s

D
A → r, B → p, C → s, D → q
Question 6
4 / -1

A
A → p, B → q, C → r, D → s

B
A → q, B → r, C →s, D → p

C
A → r, B → s , C → p, D → q

D
A → s, B → r, C → q, D → p
Question 7
4 / -1

A
I → P, II → Q, III → R, IV → S

B
I → S, II → P, III → Q, IV → R

C
I → Q, II → R, III → S, IV → P

D
I → R, II → S, III → P, IV → Q
Question 8
4 / -1

A
I → P, II → Q, III → R, IV → S

B
I → R, II → S, III → Q, IV → P

C
I → R, II → S, III → P, IV → Q

D
I → S, II → R, III → Q, IV → P
Question 9
4 / -1

A
A → p, r B → q ,s C → q,s D → r

B
A → q, r B → r ,s C → q,s D → r

C
A → r B → p ,s C → p,q D → r

D
A → s, r B → q ,r C → q,p D → r
Question 10
4 / -1

The value of stopping potential in the following diagram

A
– 4V

B
–3V

C
-2V

D
-1V