A. Protection from radiation damage
B. trace element analysis
C. use radiation energy
D. Increase resistance
✅ The correct answer is option A.
SSC
812. Which among the following sentence is correct reason behind the blue color of ocean water?
A. Water molecules absorb all other colors except blue
B. Impurities in Sea water reflect the blue light
C. Water molecules scatter the blue light
D. None of the above
✅ The correct answer is option C.
813. what happens when a ship enters a Sea from a river ?
A. It rises
B. It remains at the same level
C. sinks a little
D. None of the above
✅ The correct answer is option A.
814. Mach number‖ is a measure of which of the following?
A. Speed
B. Heat Transfer
C. Static Pressure
D. Volume
✅ The correct answer is option A.
815. Which of the following waves can be used to measure the speed of a approaching car?
A. Light waves
B. Micro waves
C. Radio waves
D. Sound waves
✅ The correct answer is option C.
816. When a barometer is taken down in a coal mine , which of the following happens with the Mercury level in the tube?
A. rises
B. falls
C. falls then rises
D. remains unaltered
✅ The correct answer is option A.
817. Thermonuclear Experimental Reactor (ITER) project is located at?
A. Italy
B. France
C. Germany
D. China
✅ The correct answer is option B.
818. Steam at 100 degree centigrade causes more severe burns. Which of the following phenomena will you use to explain this?
A. Specific heat
B. Latent heat
C. Fusion
D. Fission
✅ The correct answer is option B.
819. Which among the following character of mercury makes it suitable to use in barometers instead of water?
A. Low density and low vapor pressure
B. High density and high vapor pressure
C. Low density and good conductor of heat
D. High density and low vapor pressure
✅ The correct answer is option D.
820. Which among the following is the science dealing with Colors?
A. Optics
B. Chromatics
C. Ophthalmology
D. Otology
✅ The correct answer is option B.