Question Discussion & Solution

The correct answer is 2 ms^-2

• We know that according to Newton's 2^nd law, 
  • ​Force = Mass × Acceleration
  • or \((\vec F = m \times \vec a)\)
• Here, F = 100 N and Mass = 50 Kg
• So, 100 = 50x a ⇒ a = 100/50 = 2.
• Hence, the acceleration will be 2 ms^-2.

• Force: A force is something that changes the state of rest or motion of a body.
  • It causes the body to start moving if it is at rest or stops if it is in motion or deflects from the initial path.
  • Force is a vector quantity having SI unit Newton (N) and dimension (MLT^-2).
• According to Newton’s Second law of motion
  • The rate of change of momentum of a body is directly proportional to the resulting force acting on a body
  • Mathematically it can be expressed as 
• \(\vec F \propto \frac{{d\vec p}}{{dt}}\;or\;\vec F = m \times a\)

An electrician wears rubber gloves to avoid electric shock while repairing an electrical switch.

• As the human body is a good conductor of electricity.
• So it can pass through electricity from itself when it comes in contact with electricity and may get shocked or even fatality.
• As rubber is an insulator i.e. it is a non-conductor of electricity.
• So it protects the body of electricians from direct contact with electricity.

Jail must have Lock other options are not necessary part of jail. There can be or cannot be prisoner in jail. Rods are not necessary jail can be a room even Jailor is not always necessary.

1 atm is equal to 760 torr.

• The atmospheric pressure(atm) is unit of the pressure within the atmosphere of Earth. 
• At sea level the Earth's atmospheric pressure is 1 atm.
• The torr is an absolute-scale which is unit of pressure.
• The unit took its name from Evangelista Torricelli, an Italian physicist and mathematician who invented the barometer theory in 1644.

The correct answer is 20 August, 1949

Key Points

• Rajasthan Public Service Commission was established on 20 August 1949.
• At the time of formation of Rajasthan, the institution of Public Service Commission existed in only three of the 22 covenanting states viz. Jaipur, Jodhpur and Bikaner.
• The successor administration after the merger of the princely states promulgated an ordinance on 16th August, 1949 establishing the Rajasthan Public Service Commission Ajmer which was published in Rajasthan Gazette at 20th August, 1949.
• Rajasthan Public Service Commission came into effect on 22 December, 1949.

Additional Information

• Rajasthan Board of Secondary education was set up on 4 December, 1967.
• Union Public Service Commission was set up on 1 October, 1926.
• Staff Selection Commission was set up on 4 November, 1975.