Exponents and Powers-MCQ

Exponents and Powers

MCQs
1.   What is the value of (-1)-1?
          I. 0
         II. -1
        III. 1
        IV. None of these
2.   Which of the following is the value of 'm' in 6m/ 6-3 = 65?
          I. -3
         II. -2
        III. 3
        IV. 2
3.   Which of the following is the standard form of 0.00001275?
          I. 1.275 * 10-5
         II. 1.275 * 105
        III. 127.5 * 10-7
        IV. 127.5 * 107
4.   Which of the following is used as a form of 5.05 * 106?
          I. 505000
         II. 505000000
        III. 5050000
        IV. 50500000
5.   For which of the following is m= 8?
          I. (5m � 5-3) / 52 = 53
         II. -(5m � 5-3) / 53 = 52
        III. (5m � 53) / 52 = 53
        IV. (5 � 5-2) / 52 = 53
6.   1 micron = 1/1000000 m. which of the following is its standard form?
          I. 1.1 * 10-5
         II. 1.6 * 10-5
        III. 0.1 * 10-6
        IV. 1.0 * 10-6
7.   [(1 / 2)-1 + (2 /3 )2 - (3/4)0]-2 is equal to:
          I. 81/484
         II. 81/169
        III. 169/81
        IV. 16/81
8.   Which of the following = (100 - 990) * 100?
          I. 10000
         II. 100
        III. 9900
        IV. 99000
9.   What is the reciprocal of (-3 / 4)0?
          I. -1
         II. 1
        III. -4/3
        IV. 4/3
10.   Which of the following is the value of (4 / 5)-9 / (4 / 5)-9?
          I. (4/5)18
         II. 4/5
        III. 1
        IV. (5/4)9
ANSWERS
1.    II
2.    IV
3.    I
4.    III
5.    I
6.    IV
7.    II
8.    III
9.    II
10. III