Consider the following statements A person in a spaceship located half way between the earth and the sun will notice that the
1.Sky is jet black.
2.Stars do not twinkle.
3.Temperature outside the spaceship is much higher than that on the surface of the earth.

To which one of the following process is the term CMYK [Cyan, Magenta, Yellow and Key (black)] related?

The variation of displacement d with time t in the case of a particle falling freely under gravity from rest is correctly shown in graph

Assertion (A): Transformer is useful stepping up or stepping down voltages.
Reason (R): Transformer is a device used in D.C. circuits. In the context of the above two statements, which one of the following is correct?

A simple machine helps a person in doing

Total internal reflection can take place when light travels from

Consider the following statements At the present level of technology available in India, solar energy can be conveniently used to
1.Supply hot water to residential buildings.
2.Supply water for minor irrigation projects.
3.Provide street lighting.
4.Electrify a cluster of villages and small towns.

In which one among the following is the speed of sound maximum?

What does the term Dolby B or Dolby C printed on tape recorders and other sound systems refer to

Which of the following quantum numbers is/are required to describe the state of an electron?
1.Principal
2.Azimuthal
3.Magnetic
4.Spin