If one neutron is added to a helium nucleus, the result is:

Which of the following is attracted by a magnet?

What type of lens is a magnifying glass?

When a spring is released, its potential energy is converted to

How much heat is required to raise the temperature of 1g of water by 1 degree C.

The presence of charge on a substance can be confirmed by a

What is the speed of sound in air in meters per second (at a pressure of one atmosphere and temperature of 25 degree C)?

The SI unit of electric current is

The wire of an electric bulb is known as the

Which of the following is not a good heat insulator?

What is the name of the point where light rays from infinity coverge after passing through a lens?

Nuclei of atoms that make up a newborn baby were made in:

The reason a granite block is mostly empty space is because the atoms in the granite are:

Compared to the mass of a hydrogen atom, the mass of an oxygen atom is _____ times greater

The chemical properties of matter comes mostly from its

An excited atom decays to its ground state and emits a photon of green light. If instead, the atoms decays to an intermediate state, then the light emitted could be:

How many electrons are found in the outermost shell of aluminum (Al, atomic number 13)?

When radium (atomic number 88) emits an alpha particle, the resulting nucleus has atomic number.

Which experiences the least electrical force in an electric field?

Which film recently became the first from Bollywood to open within the top 10 in the US and Canada?