Will an astronaut see the sky in outer space?
(A) Black
(B) red
(C) white
(D) blue
The most refracted light when passing through a prism is
(A) हरा
(B) लाल
(C) नारंगी
(D) बैंगनी
Characteristic of the superconductor is?
(A) high permeability
(B) infinite permeability
(C) zero permeability
(D) low permeability
Who invented the lightning conductor?
(A) Lord Lister
(B) Benjamin Franklin
(C) Graham Bell
(D) none of these
The device to convert electrical energy into mechanical energy is?
(A) Dynamo
(B) electric motor
(C) transformers
(D) none of these
The bright colors of soap bubbles are due to
(A) scattering
(B) deflection
(C) diffraction
(D) none of these
Which one of the following processes is the term CMYK related?
(A) Offset Printing
(B) Voting Machine
(C) Railway signaling
(D) none of these
The speed of light is minimum through which of the following?
(A) Air
(B) water
(C) Glass
(D) Vaccuum
On which of the following dates is your shadow is shortest at noon?
(A) 12 April
(B) 02 March
(C) 18 March
(D) 21 June
The shining of oil layer over water is an example of?
(A) interference
(B) scattering
(C) Refraction
(D) none of these
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