1. Solar eclipse will take place when
A. the sun is between the moon and the earth
B. the earth is between the moon and the sun
C. the moon is between the sun and the earth
D. the moon does not lie on the line joining the sun and the earth
2. Isotopes of an element contain
A. the same number of protons but different number of neutrons
B. the same number of neutrons but different number of protons
C. equal number of protons and electrons
D. equal number of nucleons
3. One watt-hour is equivalent to
A. 6.3 x 10^3 J
B. 6.3 x 10^7 J
C. 3.6 x 10^3 J
D. 3.6 x 10^3 J
4. Sir C.V. Raman was awarded Nobel Prize for his work connected with which of the following phenomenon of radiation?
A. Scattering
B. Diffraction
C. Interference
D. Polarization
5. In which of the following industries is mica as a raw material?
A. Cement
B. Glass and Pottery
C. Iron and Steel
D. Electrical
6. Radiocarbon dating technique is used to estimate the age of
A. rocks
B. monuments
C. soil
D. fossils
7. Identify the vector quantity from the following
A. Heat
B. Angular momentum
C. Time
D. Work
8. Large astronomical telescopes always use as objective
A. lens
B. mirror
C. combinations of lenses
D. None of the above
9. One should not connect a number of electrical appliances to the same power socket because
A. this can damage the appliances due to overloading
B. this can damage the domestic wiring due to overloading
C. this can damage the electrical meter
D. the appliance will not get full voltage
10. Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this?
I. Diffusion
II. Refraction
III. Internal reflection
A. I, II and III
B. I and II
C. II and III
D. I and III
11. Natural radioactivity was discovered by
A. Marie Curie
B. Ernest Rutherfor
C. Henri Becquerel
D. Enrico Fermi
12. Planets are
A. luminous heavenly bodies revolving around a star
B. non-luminous heavenly bodies
C. luminous heavenly bodies that twinkle
D. luminous heavenly bodies that do not twinkle
13. One nanometer is equal to
A. 10^6m
B. 10^8m
C. 10^9m
D. 10^5m
14. Mica is used in electrical appliances such as electric iron because mica is
A. a good conductor of heat but a bad conductor of electricity
B. a bad conductor of heat but a good conductor of electricity
C. a good conductor of heat as well as electricity
D. a bad conductor of heat as well as electricity
15. It is easier to roll a barrel full of coal tar than to pull it because
A. the full weight of the barrel comes into play when it is pulled
B. the rolling friction is much less than the sliding friction
C. more surface area of the barrel is in contact with the road when it is pulled
D. coal tar is a liquid and it flows in the barrel when it is rolled
Answers
1 C
2 A
3 C
4 A
5 D
6 D
7 B
8 C
9 B
10 C
11 C
12 B
13 C
14 A
15 B
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