Physics Test 11...

A liquid drop tends to have a spherical shape because

A capillary tube of radius 1 mm is 10cm long. What maximum height of water it can hold if it is immersed in water upto 5cm and then taken out of it ? (Surface Tension of water = 98 dynes/cm)

Ice floats in water contained in a vessel. When whole ice has melted, water temp. falls from. The water level will

A beaker is partly filled with water. The mass of beaker and its contents is 100 gm. A block of wood having volume 20 c.c and density 0.5  is floated in beaker. The mass of the beaker and its contents, as read by a balance, will be

A particle executes simple harmonic motion of amplitude A. At what distance from the mean position is its kinetic energy equal to its potential energy?

Two soap bubbles of radii 4 mm & 6 mm are kept in contact. What is the radius of curvature at the junction of bubbles.

The time period of a simple pendulum with effective length equal to the radius of Earth (R) will be (g is acceleration due to gravity at the surface of earth)

When water droplets merge to form a bigger drop

Which of the following quantities is always negative in a S.H.M.

For the wave represented by the equation y =  cm the wave velocity and the maximum particle velocity are