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1481. Which one of the following is the correct arrangement in the decreasing order of the refractive indices of glass, diamond and water ?
A. Glass, water, diamond
B. Water, glass, diamond
C. Diomand, water, glass
D. Diamond, glass, water
Explanation:
1482. The Moon is revolving in a circular orbit around Earth with a unifrom speed V. If the gravitational force suddenly disapperars, the Moon will :
A. continue to move with speed V along the original orbit
B. fall downward to Earth with increasing velocity
C. finally come to rest somewhere on the original path
D. move with the velocity V tangentially to the original orbit
Explanation:
1483. A lighted candle gets extinguished when convered with a tumbler because of :
A. adequate supply of air
B. inadequate supply of air
C. presence of non-luminous matter
D. none of these
Explanation:
1484. Arrange in decending order of hotness the colour of the stars : 1. Red 2. Yellow3. Blue white 3. White
A. 3, 4, 2, 1
B. 4, 3, 2, 1
C. 3, 2, 4, 1
D. 1, 2, 3, 4
Explanation:
1485. Consider the following statements : 1. Smart Card is a plastic card with an embedded microchip2. Digital technology is primarily used with new physical communication medium such as satellite and fibre potics transmission 3. A digital library is a collection of documents in an organized electronic from available on the Internet only Which of the statements given above is/are correct ?
A. 3 only
B. 1 and 2
C. 2 and 3
D. 1, 2 and 3
Explanation:
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