निम्नलिखित प्रश्नों में चार वैकल्पिक वर्तनियाँ दी गई हैं। सही वर्तनी वाले शब्द का चयन कीजिए-

Which of the following equations correctly represents the momentum p of a photon of Energy E?

Energy that is produced commercially from coal is called –

What is the momentum of an object of mass 1/2 m, moving with a velocity of 2V?

A decibel is –

Two long parallel conductors are placed 8mm apart from each other carrying a current of 120 Amperes. What will be force per meter length of each one?

An object of mass ‘m’ be made to fall freely from a height ‘h’. At the start the potential energy is _____ and kinetic energy is ______.

In MRI machine, which one of the following is used?

The shape of our Milky Way galaxy is

________ are the elements of group 18.