Device used to measure potential difference between two points in a circuit is ?
Ammeter
Galvanometer
Voltmeter
None of above
Answer: Option C
Similar Questions :
1. What is the maximum value of deforming force upto which a material shows elastic property and above which the material loses it ?
Elasticity
Strain
Elastic Limit
Stress
Answer: Option C
2. Sudden fall in barometer is indication of
Storm
Rain
Tide
Clear weather
Answer: Option A
3. Which instrument is used to measure sound under water ?
Hygrometer
Hygroscope
Hypsometer
Hydrophone
Answer: Option D
Explanation:
Hygrometer - is used to measure level of humidity,
Hygroscope - shows the changes in atmospheric humidity,
Hypsometer - is used to determine the boiling points of liquids.
4. What is newton third law of motion ?
Every body maintains its initial state rest or motion unless no external force is applied.
The rate of change in momentum of a body is directly proportional to the applied force on the body and takes place in the direction of force.
To every action there is equal and opposite reaction.
None of above.
Answer: Option C
Explanation:
Newton First Law of Motion : Every body maintains its initial state rest or motion unless no external force is applied.
Newton Second Law of Motion : The rate of change in momentum of a body is directly proportional to the applied force on the body and takes place in the direction of force.
5. Which of following in not a property of cathode ray.
Cathode rays are invisible and travel in a straight line.
These rays can ionise gases.
These rays can penetrate through thin metal foils.
These rays make materials cool on which they fall.