At wood machine is attached below the left hand pan of a physical balance while equal weight `(M+m)` g is placed in the right hand pan. The beam is horizontal when the masses M and m on the left hand side are braked What will happen if the masses M and m are unbraked on the left hand side?

In a physical balance working on the principle of moments, when 5 mg weight is placed on the left pan, the beam becomes horizontal. Both the empty pans of the balance are of equal mass. Which of the following statements is correct ?

In a physical balance working on the principle of moments, when 5 mg weight is placed on the left pan, the beam becomes horizontal. Both the empty pans of the balance are of equal mass. Which of the following statements is correct ?

In a physical balance working on the principle of moments, when 5 mg weight is placed on the left pan, the beam becomes horizontal. Both the empty pans of the balance are of equal mass. Which of the following statements is correct ?

A balance is made of a rigid rod free to rotate about a point not at the centre of the rod. When an unknown mass m is placed in the left pan, it is balanced by a mass m_(1) placed in the right pan and similarly when the mass m is placed in the right pan, it is balanced by a mass m_(2) in the left pan. Neglecting the masses of the pans, m is

What will be the acute angle between the hour-hand and the minute-hand at 2:13 p.m?

What will be the acute angle between the hour hand and the minute hand at 6:25 p.m.?