The number of electric field lines emerged out from 1nC charge is
(`epsilon_0`=8.85 x `10^-12` MKS)

A)9 x `10^9`
B)1.13 x `10^8`
C)1.13 x `10^11`
D)0.9 x `10^-9`

The number of cubes of side 3 cm that can be cut from a cuboid of dimensions 10 c m\ x\ 9c m\ x\ 6c m , is (a) 9 (b) 10 (c) 18 (d) 20

The number of real solutions of the equation (9//10)^x=-3+x-x^2 is a. 2 b. 0 c. 1 d. none of these

The electric field due to a charge at a distance of 3 m from it is 500 NC^(-1) . The magnitude of the charge is [(1)/(4 pi epsi_(0)) = 9 xx 10^(9) N - m^(2)//C^(2)]

The number of abdominal segments in male and female cockroach is (a) 10, 10 (b) 9, 10 (c) 10, 11 (d) 8, 10

0.9 is equal to 1 9/10 10/9 9

0.9 is equal to 1 9/10 10/9 9

0.9 is equal to 1 9/10 10/9 9

0.9 is equal to 1 9/10 10/9 9

0.9 is equal to 1 9/10 10/9 9

A total charge of 5 muC is distributed uniformly on the surface of the thin walled semispherical cup. If the electric field strength at the centre of the hemisphere is 9xx10^(8) NC^(-1) , then the radius of the cup is (1/(4pi epsi_(0))=9xx10^(9) N-m^(2) C^(-2))