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Question:- 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
Answer:- Option A
Question:- In which of the following industries is mica as a raw material? A. Cement B. Glass and Pottery C. Iron and Steel D. Electrical
Answer:- Option D
Question:- Radiocarbon dating technique is used to estimate the age of A. rocks B. monuments C. soil D. fossils
Answer:- Option D
Question:- Identify the vector quantity from the following A. Heat B. Angular momentum C. Time D. Work
Answer:- Option B
Question:- Large astronomical telescopes always use as objective A. lens B. mirror C. combinations of lenses D. None of the above
Answer:- Option C
Question:- 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
Answer:- Option B
Question:- Rainbow is produced when sunlight fall on drops of rain. Which of the following physical phenomena are responsible for this? Diffusion Refraction Internal reflection A. I, II and III B. I and II C. II and III D. I and III
Answer:- Option C
Question:- Natural radioactivity was discovered by A. Marie Curie B. Ernest Rutherfor C. Henri Becquerel D. Enrico Fermi
Answer:- Option C
Question:- 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
Answer:- Option B
Question:- One nanometer is equal to A. 10-6m B. 10-8m C. 10-9m D. 10-5m
Answer:- Option C
Question:- 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
Answer:- Option A
Question:- 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
Answer:- Option B
Question:- Minimum number of unequal vectors which can give zero resultant are A. two B. three C. four D. more than four
Answer:- Option B
Question:- Intensity of sound has A. an object existence B. a subject existence C. no existence D. both subjective and objective existence
Answer:- Option A