Which one of the following has maximum inertia?

• An atom

• A molecule

• A one-rupee coin

• A cricket ball

Which one of the following is the value of 1 kWh of energy converted into joules?

• 1.8 x 10⁶ J

• 3.6 x 10⁶ J

• 6.0 x 10⁶ J

• 7.2 x 10⁶ J

Which one of the following statements about gravitational force is NOT correct?

• It is experienced by all bodies in the universe

• It is a dominant force between celestial bodies

• It is a negligible force for atoms

• It is same for all pairs of bodies in our universe

Whether an object will float or sink in a liquid, depends on

• mass of the object only

• mass of the object and density of liquid only

• difference in the densities of the object and liquid

• mass and shape of the object only

Which one of the following devices is non-ohmic?

• Conducting copper coil

• Electric heating coil

• Semi conductor diode

• Rheostat

Which one of the following is the natural phenomenon based on which a simple periscope works?

• Reflection of light

• Refraction of light

• Dispersion of light

• Total internal reflection of light

57.

Which one of the following frequency ranges is sensitive to human ears?

• 0- 200 Hz

• 20 - 20,000 Hz

• 200 - 20,000 Hz only

• 2,000 - 20,000 Hz only

Which one of the following statements about the mass of a body is correct?

• It changes from one place to another

• It is same everywhere

• It depends on its shape

• It does not depend on its temperature

A ball balanced on a vertical rod is an example of

• stable equilibrium

• unstable equilibrium

• neutral equilibrium

• perfect equilibrium

Which of the following statements about a fluid at rest in a cup is/are correct?

1. Pressure is same at all the points in the fluid.
2. Pressure is exerted on the walls.
3. Pressure exists everywhere in the fluid.

Select the correct answer using the code given below

• 1 and 2 only

• 2 and 3 only

• 1 only

• 1, 2 and 3