PG TRB Physics Model Question Paper with Answer - 1
Question: 1
When light waves pass from air to glass, the variables affected are
(A) Wavelength and velocity
(B) Wavelength and frequency
(C) Velocity and frequency
(D) Wavelength, frequency and velocity
Ans: A
Wavelength and velocity
Question: 2
Who was the inventor of electron microscope?
(A) Max Knoll & Ernst Ruska
(B) Leewan Hock
(C) Robert Koach
(D) P. Swansun
Ans: A
Max Knoll & Ernst Ruska
Question: 3
The region covered by water is known as
(A) Hydrosphere
(B) Ionosphere
(C) Atmosphere
(D) Lathosphere
Ans: A
Hydrosphere
Question: 4
The position of the image in a camera is
(A) At F
(B) At 2F
(C) In between F and 2F
(D) Beyond 2F
Ans: C
In between F and 2F
Question: 5
A switch is always connected to the
(A) Neutral wire
(B) Line wire
(C) Earth wire
(D) None of these
Ans: B
Line wire
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