Write the working principle of Hydraulic press and show that mechancial advantage of hydraulic prss m>1.

Write the working principle of a telescope.

Write the working principle of cyclotron.

In a hydraulic press the ratio of radius of the piston is 16:3 and arm ratio 9:2 calculate the mechanical advatage of the press.

State and explain Pascal's law of transmission of liquid pressure. Explain how this principle is applied in hydraulic lift.

A partical of mass m1 is travelling with avelocity u1 strikes head-on against partical of mass m2 at rest.After collision the particales move with a velocity v1 and v2 respectively .show that the ratio of decrese in K.E of the partical of mass m1 to its original K.E is given By (4m1m2)/(m1+m2)^2

Make a diagram to show how hypermetropia. is corrected. The near point of a hypermetropic eye is 1 m. What is the power of the lens required to correct this defect? Assume that the near point of the normal eye is 25 cm.

Fom a window 60m high above the ground of a house in a street ,angles of elevation and depression of the top and the foot of another house on the opposite side of the street are 60° and 45° respectively. Show that the height of the opposite house is 60(1+sqrt 3)m

From a window h m high above the ground in a street, the angles of elevation and depression of the top and foot of the other house on the opposite side of the street as alpha and beta respectively show that height of the opposite house is h(1+tan alpha cos beta)m .