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The logic followed here is as follows: The sum of all the digits of the number, and then the sum is multiplied by '3'. For 236 = 33: 2 + 3 + 6 = 11×3 = 33 For 487 = 57: 4 + 8 + 7 = 19 × 3 = 57 For 6391 = 57: 6 + 3 + 9 + 1=19 × 3 = 57 Similarly, for 851 = ?: 8 + 5 + 1 = 14 × 3 = 42
Two cars A and B are running at velocities of 60km per hour and 45 km per hour. What is the relative velocity of car A with respect to car B, if both ar...
Cryogenics is a branch of Physics that deals with what?
The direction of magnetic field inside a magnet is
In circular motion the direction of velocity changes at _______ points.
Which of the following pairs of phenomena illustrate the particle nature of the electromagnetic radiation?
A galvanometer coil has a resistance of 14 Ω and the metre shows full scale deflection for a current of 4 mA. How will you convert the metre into a vo...
The order of wavelengths for ordinary light is:
The colour of sky appears blue due to –
Which of the following particles in motion, having the same kinetic energy, has the shortest wavelength?
In an experimental arrangement of a Fresnel's biprism, monochromatic light of wavelength 2. is used to produce interference fringe pattern. On introduc...