General Science Class 10

Sound is a form of :

1. Electrical energy
2. Thermal energy
3. Mechanical energy
4. Chemical energy

The approximate value of the speed of sound in air at 0°C temperature :

1. 332 m/s
2. 34 m/s
3. 17 m/s
4. 680 m/s

Sound travel faster in solid as compare to gases because of :

1. Gas molecules are packed loosely
2. Sound does not travel faster through a solid than a gas
3. Solid molecules are packed tightly
4. Gas molecules move faster

The two factors that affect the speed of sound in air are :

1. Humidity and volume of the air
2. Temperature and mass of the air
3. Volume and mass of the air
4. Temperature and humidity of the air

The separation between two consecutive compressions of the sound wave is called?

1. Time period
2. Frequency
3. Amplitude
4. Wavelength

The order of speed of the sound in different mediums from faster to slowest is :

1. Gas → Liquid → Solid
2. Liquid → Solid → Gas
3. Solid → Liquid → Gas
4. Gas → Solid → Liquid

Ultrasound has several uses in medicine and industry. Which one has use of ultrasound?

1. Absorption
2. Pre-natal scanning
3. Dispersion
4. Measuring humidity of air

The causes of the echo is :

1. Absorption
2. Dispersion
3. Reflection
4. Refraction

Which type of wave cannot travel through a vacuum?

1. Sound waves
2. Microwaves
3. Infra-red radiation
4. X-rays

The waves that have maximum penetrating power to treat tumors are :

1. Ultraviolet radiation
2. Microwaves
3. Gamma-rays
4. Radio waves