Gravitation — Physics STD 11 Science — Question

How many fixed points are taken in absolute (kelvin) scale of temperature and what is their value?

Tone of open pipe is softer then tune of close pipe, why?

Draw velocity-time graph for an object, starting from rest. Acceleration is constant and remains positive.

Write the formula to find the value of excess pressure due to inside and outside in a soap bubble.

There is a hole in a metal disc. If a metal disc is heated, what will happen to the size of the hole?

What is the effect of non-sphericity of the earth on the value of 'g'?

The increase in the speed of a car is proportional to the additional petrol put into the engine. Is it possible to accelerate a car without putting more petrol or less petrol into the engine?

Two particles of masses m, and m, attract each other gravitationally and are set in motion under the influence of the gravitational force? Will the centre of mass move?

Calculate the volume of 1 mole of an ideal gas at STP.

A ladder is learning against a wall. If it slips, where will its instantaneous center of rotation be?