Question: The unit of frequency is:

• 1. Hertz
• 2. Metre
• 3. Meter Per Second
• 4. None of these

Question: The unit of radioactivity is:

• 1. Electron volt
• 2. Electron ampere
• 3. Curie
• 4. D. MV

Question: The Penetrating power of X-rays depends upon their:

• 1. Applied voltage
• 2. frequency
• 3. source
• 4. None

Question: Tape speed is measured in:

• 1. feet per second
• 2. meter per second
• 3. inch per second
• 4. nonr

Question: A unit of length equal to the average distance between the earth and sun is called:

• 1. Light year
• 2. Parallax
• 3. Parsec
• 4. Astronomical unit

Question: Joule is the unit of :

• 1. Joule
• 2. energy
• 3. work
• 4. None

Question: Electrical charge is measured in unit of _________?

• 1. Ohm
• 2. Coloumb
• 3. Ampere
• 4. Watt

Question: The current through a conductor between two points is directly proportional to the voltage across the two points, is known as?

• 1. Ohm’s law
• 2. Kirchhoff’s 2nd law
• 3. Kirchhoff’s 1st law
• 4. None

Question: The electric lines of force are____________?

• 1. physically existing near the charges
• 2. physically existing every where
• 3. imaginary
• 4. None

Question: The unit of measurement of intensity of sound is in:

• 1. Decibels
• 2. Lux
• 3. Parsec
• 4. Candela