TRB Polytechnic Lecturer Exam Question Paper for Physics - 1
Question: 1
Rocket operates (works) on the principle of
(A) Avogadro’s concept
(B) Bernoulli’s theorem
(C) Momentum conservation
(D) Energy conservation
Ans: C
Momentum conservation
Question: 2
The refractive index of glass depends on
(A) The size of the glass slab
(B) The angle of incidence
(C) The colour of the incident light
(D) The intensity of the incident light
Ans: A
The size of the glass slab
Question: 5
Electromagnet are based on the principle of
(A) magnetic effect of current
(B) chemical effect of current
(C) mechanical effect of current
(D) heating effect of current
Ans: A
magnetic effect of current
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