If wavelengths of two radiations are in the ratio of `1:2` , then the ratio of energy of corresponding photons is
A) `1:1`
B) `2:1`
C) `4:1`
D) `3:2`

If the angles of a triangle ABC are in the ratio 1:2:3. then the corresponding sides are in the ratio ?

If the heights of two cones are in the ratio of 1:4 and the radii of their bases are in the ratio 4:1, then the ratio of their volumes is (a) 1:2 (b) 2:3 (c) 3:4 (d) 4:1

If the volumes of two cubes are in the ratio 8:1, then the ratio of their edges is 8:1 (b) 2sqrt(3):1( c) 2:1 (d) none of these

If the volumes of two cubes are in the ratio 27 : 1, the ratio of their edges is (a) 1 : 3 (b) 1 : 27 (c) 3 : 1 (d) 27 : 1

If the angles of a triangle are in the ratio 1:2:3,the corresponding sides are in the ratio

A photon and an electron both have wavelength 1 Å . The ratio of energy of photon to that of electron is

The volumes of two spheres are in the ratio of 64 : 27. The ratio of their surface areas is (a) 1 : 2 (b) 2 : 3 (c) 9 : 16 (d) 16 : 9

If the angles of a triangle are in the ratio 4:1:1, then the ratio of the longest side to the perimeter is sqrt(3):(2+sqrt(3))( b) 1:61:2+sqrt(3)(d)2:3

Two particles of masses in the ratio 1: 2 are moving in circles of radii in the ratio 2:3 with time periods in the ratio 3:4. The ratio of their centripetal forces is (A) 9:4 (B) 1:4 (C) 9:16 (D) 16:27

If the ratio of volumes of two cones is 2 : 3 and the ratio of the radii of their bases is 1 : 2, then the ratio of their heights will be (a) 3 : 4 (b) 4 : 3 (c) 3 : 8 (d) 8 : 3