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Assertion (A) : Mirrors used in searchlights are concave spherical.
Reason (R ) : For searchlight, a parallel beam of light is required.

A) Both A and R are true and R is the correct explanation of A.
B) Both A and R are true but R is not the correct explanation of A..
C) A is true but R is false.
D) A is false but R is true.

Correct Answer:




D) A is false but R is true.

Part of solved Assertions and Reasons questions and answers : >> General Science >> Assertions and Reasons

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Similar Questions

1). Assertion (A) : Long distance radio broadcasts use short wave bands.
Reason (R ) : The ionosphere reflects waves in these bands.

A). Both A and R are true and R is the correct explanation of A.

B). Both A and R are true but R is not the correct explanation of A..

C). A is true but R is false.

D). A is false but R is true.

2). India first took part in the Olympic Games in the year :

A). 1900

B). 1928

C). 1972

D). 1974

3). India first won the Olympic Hockey gold at :

A). London

B). Berlin

C). Amsterdam

D). Los Angeles

4). India made her debut in Olympic football at :

A). Helsinki in 1956

B). Melbourne in 1956

C). London in 1948

D). Tokyo in 1964

5). First Olympic Games war held in :

A). 776 B.C.

B). 798 B.C.

C). 876 B.C.

D). 898 B.C.

6). The first Indian woman to reach Olympic finals in individual track events was :

A). P.T. Usha

B). Shiny abraham

C). Aarti Saha

D). M.D. Valsamma

7). Of the following cities, in which city/cities have the Olympic Games been held twice ?
1. Paris

2. Berlin
3. London

A). only 1

B). 1 and 2

C). 3 and 4

D). 1 and 3

8). Which of the following is a set of five events included in Modern Pentathlon ?

A). Cycling, Skating, Shooting, Gymnastics, Running

B). Judo, Shooting, Swimming, Cycling, Running

C). Horse riding, Fencing, Shooting, Gymnastics, Running

D). Horse riding, Fencing, Shooting, Swimming Running

9). The five intertwined rings or circles on the Olympic flag made of white (from left to right) are :

A). blue, yellow, black, green and red

B). yellow, red, green, black and blue

C). red, green, black, yellow and blue

D). yellow, green, black, blue and red

10). India won the last Hockey Olympic Gold in ?

A). 2000, Sydney

B). 1996, Atlanta

C). 1980, Moscow

D). 1972, Munich