SET 5
1. The rest mass of a photon of wavelength λ is:
a. h/cλ
b. zero
c. hc/λ
d. h/λ
Answer- b.
2. The value of retarding potential needed to stop the
photoelectrons ejected from a metal surface of work function 1.2 eV with light
of energy 2eV is:
a. 0.8V
b. 1.8V
c. 2.8V
d. 3.8V
Answer- a.
3. Conversion of light energy into electrical energy is
achieved in a:
a. thermocouple
b. Coolidge tube
c. cloud chamber
d. photocell
Answer- d.
4. The work function for photoelectric effect:
a. depends upon the frequency of light
b. is different for different metals
c. is same for all metals
d. none of the above
Answer- b.
5. A cathode ray tube is operated at 2500 V. The speed of
electron will be:
a. 3.6 X 10⁶m/s
b. 1.5 X 10⁷m/s
c. 6X 10⁷m/s
d. 3X10⁷m/s
Answer- d.
6. According to Bohr’s atomic model, the electron revolve
around the nucleus in:
a. radiating circular orbit
b. arbitrary circular orbit
c. stationary elliptical orbit
d. stationary circular orbit
Answer- d.
7. The speed of electron in the ground state of hydrogen
atom is:
a. 2X10⁵m/s
b. 2X10⁶m/s
c. zero
d. speed of sound
Answer- b.
8. In which of the following experiments, the quantum
nature of light has to be used, to explain the observations?
a. Polarimetry
b. Photoelectricity
c. Newton’s ring
d. Diffraction grating
Answer- b.
9. What is
‘Watergate’?
a. A gate of
dam across Mississippi
b. A dam
across Hudson river
c. Scandal in
which President Richard Nixon got entangled
d. A five
star hotel in Los Angeles
Ans. c)
10. What is the
name of the building which holds the principal US bullion depository
a. Fort
Atkinson
b. Fort
Collins
c. Fort Knox
d. Jodrell
Bank
Ans c)
11. Which country
produces the maximum sugar in the world
a. USA
b. India
c. Cuba
d. Brazil
Ans b)
12. What is the capital of Morocco
a. Muscat
b. Managua
c. Ulan Bator
d. Rabat
Ans d)
13. ‘Death Valley’ is located in
A. California
US
B. Kerala,
India
C. Israel
D. Saudi
Arabia
Ans a)
14. The foundation of modern education system in India was
laid by—
(A) The Charter Act of 1813
(B) Macaulay’s Minutes of 1835
(C) The Hunter Commission of 1882
(D) Wood’s Despatch of 1854
Ans. b)
15. Uplift of the backward classes was the main programme of
the—
(A) Prarthana Samaj
(B) Satya Shodhak Samaj
(C) Arya Samaj
(D) Ramakrishna Mission
Ans b)
16. The Ryotwari settlement was introduced by the British in
the—
(A) Bengal Presidency
(B) Madras Presidency
(C) Bombay Presidency
(D) Madras and Bombay Presidencies
Ans d)
17. The Buddhist Sect Mahayana formally came into existence
during the reign of—
(A) Ajatashatru
(B) Ashoka
(C) Dharmapala
(D) Kanishka
Ans d)
18. The last in succession of Jaina Tirthankaras was—
(A) Parsvanatha
(B) Rishabha
(C) Mahavira
(D) Manisubrata
Ans c)
19. The earliest rock cut caves in western India are those
at—
(A) Nasik, Ellora and Ajanta
(B) Junnar, Kalyan and Pitalkhora
(C) Ajanta, Bhaja and Kondane
(D) Bhaja, Pitalkhora and Kondane
Ans a)
20. The name by which Ashoka is generally referred to in his
inscriptions is—
(A) Chakravarti
(B) Dharmadeva
(C) Dharmakirti
(D) Priyadarsi
Ans d)
21. Which one of the following is a monument constructed by
Sher Shah ?
(A) Kila-i-Kuhna mosque at Delhi
(B) Atala Masjid at Jaunpur
(C) Barasona Masjid at Gaur
(D) Quiwwat-al-Islam mosque at Delhi
Ans a)
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