Physics questions for CDS/NDA exam. Attempt this quiz to increase your scores. The passing percentage is 70%. All the best. Happy Army Day.
#1. Which one of the following physical quantities is the same for molecules of all gases at a given temperature?
#2. An oscilloscope is an instrument which allows us to see waves produced by?
#3. Which one among the following colors has the highest wavelength?
#4. The gas used in a refrigerator is?
cooled down on flowing
heated up on flowing
cooled down when compressed
cooled down when expanded
#5. In SONAR, we use?
audible sound waves
#6. Viewfinders, used in automobiles to locate the position of the vehicles behind,are made of?
#7. If a ship moves from freshwater into seawater,it will?
sink a little bit
rise a little higher
#8. The most familiar form of radiant energy in sunlight that causes tanning and sunburning of human skin , is called?
#9. Hair of a shaving brush cling together when the brush is removed from water due to?
#10. A passenger in a moving train tosses a five rupee coin. If the coin falls behind him ,then the train must be moving with a uniform?
#11. Raw mangoes shrivel when picked in brine. The phenomenon is associated with?
increase of surface tension of fluid
decrease of surface tension of fluid
#12. The blackboard seems black because it?
reflects every color
does not reflect any color
absorbs black color
reflects black color
#13. In scuba diving,while ascending towards the water surface,there is a danger of bursting the lungs.It is because of?
Gay-Lussac's law of combining volumes
Graham's law of diffusion
#14. A device,which is used in our TV set,computer and radio set for storing the electric charge,is?
#15. Which type/types of pen uses/use capillary action in addition to gravity for flow of ink?
Both 2 & 3