Science Quiz Based on NCERT for SSC CPO 2016

00:00:00

1.Cryogenic engines find application in

washing machine
frost free refrigerator
rocket technology
sub-marine propulsion


2. "Consider the following machines
I. Hydraulic lift
II. Hydraulic brake
Which of the machines given above is/are working on the " Pascal's law”?

Only I
Only II
Both I and II
Neither I nor II

3. "A liquid is kept in a regular cylindrical vessel up to a certain height. If this vessel is replaced by another cylindrical vessel having half the area of cross-section of the bottom, the pressure on the bottom will”

remain unaffected
be reduced to half the earlier pressure
be increase to twice the earlier pressure
be reduced to one-fourth the earlier pressure



4. Which one of the following reactions is the main cause of the energy radiation from the sun?.

Fusion reaction
Fission reaction
Chemical reaction
Diffusion reaction

5. "When light enters from air to water, then its "

Frequency increases and speed decreases
Frequency is same but the wavelength is smaller in water than in air
Frequency is same but the wavelength is greater in water than in air
Frequency is decreases but the wavelength is smaller in water than in air

6. "Which one of the following statements is correct?”

Both electron and neutron reside inside the nucleus
Both electron and proton reside inside the nucleus
Both proton and neutron reside inside the nucleus
Only electron resides inside the nucleus



7. "Optical fibre mainly used in communication is based on”

less absorption coefficient
less scattering
total internal reflection
refraction

8. Confirmation of the presence of Higgs Boson will justify

both the standard model and superstring theory
the unification of all the four fundamental forces
the steady-state model of the universe
the mass of the fundamental practice


9."Mirage is a phenomenon due to "

reflection of light
refraction of light
total internal reflection of light
total diffraction of light


10. "The blackboard seems black because it”

Reflects every colour
Does not reflect any colour
Absorbs black colour
Reflects black colour

                                       



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