Decibel is the unit used for measuring
1). Speed of light?
2). Intensity of heat
3). Intensity of sound
4). Radiowave frequency
1. Water will not be vapourised if
2. The Minimum Support Price of wheat for the current financial year is fixed at Rs. ??.. per quintal.
3. The sky appears blue because
4. Intensity of sound at a point is ____ its distance from the source.
5. The SI unit for measuring work and energy is
7. The core of an electromagnet is made of soft iron because soft iron has
9. A pond of water appears less deep due to
10. Which of the following is the cleanest source of energy?