Question
The red colour of tomatoes is due to the presence
of:Solution
The correct answer is D
A block rests on another block, and the lower one is pulled with a horizontal force. If the coefficient of friction between them is μ, what is the maxi...
The energy that can harness heat stored below the earth's surface is known as –
A ray of light is incident on a transparent medium at an angle of 60°. The reflected ray of light is found to be completely Q.4 polarized. Then, the r...
What is the principle behind the working of a transformer? Â
Two long parallel wires 2 cm apart carry 5 A and 3 A currents in the same direction. What is the force per unit length on one wire?
Fog is an example of –
Two spherical soap bubbles of radii r1 and r2 coalesce to form a bubble of radius R. If surface tension of soap solution is T, atmospheric pressure is P...
A machine does 600 J of work in 2 minutes. Find its power. Â
Current sensitivity of a moving coil galvanometer is 9 div/mA and its voltage sensitivity (angular deflection per unit voltage applied) is 30 div/V. The...
A coil with N turns and area A is placed in a magnetic field varying as B = B₀·e–αt. What is the induced EMF at time t = 0?
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