To demonstrate the phenomena of interference, we require (1) Two sources which emit radiation of the same frequency (2) Two sources which emit radiation of nearly the same frequency (3) Two sources which emit radiation of the same frequency and have a definite phase relationship (4) Two sources which emit radiation of different wavelengths
1 6877The blue colour of the sky is due to the fact that (1) Red light is absorbed (2) Blue light is preferentially scattered (3) Blue light is preferentially absorbed (4) Blue is the natural colour of sky
2 5082To get three images of a simple object, one should have two plane mirrors at an angle of (1) 500 (2) 600 (3) 300 (4) 900
2 3582A bar magnet with poles N and S marked is freely suspended. Then the end marked N would point towards (1) the South magnetic pole of the earth (2) the South geographic pole of the earth (3) the North magnetic pole of the earth (4) the North geographic pole of the earth
6 10967A steady current is flowing through a solenoid. If a bundle of soft iron is inserted in the coil, then the magnetic field inside the solenoid (1) increases (2) decreases (3) remains unaffected (4) increases first and then decreases
2 3639Three resistances of 2 ohms each are connected in a triangle. The resistance in ohms between any two corners is ?????.. ohms. (1) 3 (2) 4 (3) 6 (4) 4/3
1 3477The motion of an electron is affected by (1) only an electric field (2) only a magnetic field (3) both electric and magnetic fields (4) either an electric or magnetic field
1 3386Through which of the following countries does the equator pass? (1) Canada (2) Brazil (3) China (4) Saudi Arabia
2 5241Fa-Hien came to India during the reign of (1) Chandragupta I (2) Ashoka (3) Harshavardhan (4) Chandragupta II
TATA,
3 9388A judge of the Supreme Court of India is to hold office until he attains the age of (1) 65 years (2) 60 years (3) 62 years (4) 58 years
3 20579Which of the following civilizations is the most ancient? (1) Inca (2) Egyptian (3) Indus-valley (4) Byzantine
1 2906Who is traditionally regarded as the author of ?Ilidad?? (1) Homer (2) Dante (3) Sophocles (4) Virgil
2 4089
I am preparing for RRB (KOLKATA) Goods Guard Exam. Please send me the previous Question papers
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