Dual Nature of Matter and Radiation-De-Broglie Relation [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 6 of 35
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Question 1
Question MCQ▾
One electron & one proton is accelerated by equal potential. Ratio of their de-Broglie wavelengths is-
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 2
Question MCQ▾
A photon and an electron have equal energy E. is proportional to
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | Not depend upon E | |
c. | ||
d. |
Question 3
Question MCQ▾
A radio station is transmitting waves of wavelength 300 m. If diffracting power of transmitter is 10 kW, then numbers of photons diffracted per second is-
Choices
Choice (4) | Response | |
---|---|---|
a. | 1.5 × 1033 | |
b. | 1.5 × 1029 | |
c. | 1.5 × 1031 | |
d. | 1.5 × 1035 |
Question 4
Question MCQ▾
In photoelectric effect if intensity of light is doubled then maximum kinetic energy of photoelectrons will become
Choices
Choice (4) | Response | |
---|---|---|
a. | No change | |
b. | Four time | |
c. | Double | |
d. | Half |
Question 5
Question MCQ▾
From rest an electron is accelerated between two such points which has potential 20 & 40 volts respectively. Associated de-Broglie wavelength of electron is-
Choices
Choice (4) | Response | |
---|---|---|
a. | 7.5 Å | |
b. | 2.75 Å | |
c. | 0.75 Å | |
d. | 2.75 m |
Question 6
Question MCQ▾
Which of the following figure represents variation of particle momentum and the associated de-Broglie wavelength?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |