Science related questions and answers

DoThe Best
By DoThe Best October 7, 2015 12:54

1. Raman effect involves

A. scattering of light
B. diffraction of light
C. interference of light
D. all the above


2. Ball pen works on the principles of

A. viscosity
B. gravitational force
C. boyle’s law
D. capilliarity and surface tension


3. TV waves are otherwise known as

A. radio waves
B. cosmic rays
C. micro waves
D. uv rays


4. Filament of an electric bulb is made of

A. copper
B. silver
C. iron
D. tungsten


5. The hydraulic brackes used in automobiles is a direct application of

A. Pascal’s law
B. Toricellian law
C. Bernoulli’s theorem
D. Archimede’s principle


6. A falling drop of rain water acquires the spherical shape due to

A. viscosity
B. gravitational force
C. surface tension
D. atmospheric pressure


7. In a reactor, cadmium rods are used for

A. absorping neutrons
B. speeding neutrons
C. slowing fast neutrons
D. dispersing neutrons


8. The difference between musical sound noise is due to

A. pitch
B. intensity
C. wavelength
D. musical instrument


9. Atom bomb is based on

A. nuclear fission
B. nuclear fusion
C. chemical reaction
D. artificial radioactivity


10. Oil or soap film when in daylight appears coloured because of

A. reflection
B. refraction
C. interference
D. surface energy


DoThe Best
By DoThe Best October 7, 2015 12:54
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