0 degrees Kelvin is equal to -273.15 degrees Celsius. It is the lowest possible temperature, at which all molecules are have the least possible amount of kinetic energy. It refers to a state at which the enthalpy and entropy of a cooled ideal gas reaches its minimum value, taken as 0.

Correct Option: B

0 degrees Kelvin is equal to -273.15 degrees Celsius. It is the lowest possible temperature, at which all molecules are have the least possible amount of kinetic energy. It refers to a state at which the enthalpy and entropy of a cooled ideal gas reaches its minimum value, taken as 0.

A tuning capacitor or tuning condenser is a variable capacitor used in an electronic circuit of a radio. It usually connects in parallel to a loop antenna and
its capacitance may be intentionally and repeatedly changed mechanically or electronically.

Correct Option: B

A tuning capacitor or tuning condenser is a variable capacitor used in an electronic circuit of a radio. It usually connects in parallel to a loop antenna and
its capacitance may be intentionally and repeatedly changed mechanically or electronically.

Least distance of distinct vision is the minimum object’s distance that is able to produce a distinct image on the retina.This distance is about 25 cm from the eye. However, it varies with age. For infants the least distance of distinct vision is about 5 to 8 cm.

Correct Option: B

Least distance of distinct vision is the minimum object’s distance that is able to produce a distinct image on the retina.This distance is about 25 cm from the eye. However, it varies with age. For infants the least distance of distinct vision is about 5 to 8 cm.

High Carbon Monoxide (CO) content in exhaust gas of automobiles usually indicate a fuel mixture richer than ideal (rich mixture - air fuel ratio below 14.7).High CO levels result from inadequate O2 supply needed for complete combustion that is caused by a too rich mixture - too much fuel or not enough air. This is most seen during : l Idle running or low idle speed; l Improper float settings in carbureted vehicles; l Dirty or restricted air filters; l Excessively dirty or contaminated oil l Improper operation of the fuel delivery system; etc.

Correct Option: C

High Carbon Monoxide (CO) content in exhaust gas of automobiles usually indicate a fuel mixture richer than ideal (rich mixture - air fuel ratio below 14.7).High CO levels result from inadequate O2 supply needed for complete combustion that is caused by a too rich mixture - too much fuel or not enough air. This is most seen during : l Idle running or low idle speed; l Improper float settings in carbureted vehicles; l Dirty or restricted air filters; l Excessively dirty or contaminated oil l Improper operation of the fuel delivery system; etc.

In order to convert a Galvanometer into voltmeter, a very high resistance known as “series resistance” is connected in series with the galvanometer. The conversion is made for enabling the galvanometer to measure the potential difference across any component in a circuit.

Correct Option: C

In order to convert a Galvanometer into voltmeter, a very high resistance known as “series resistance” is connected in series with the galvanometer. The conversion is made for enabling the galvanometer to measure the potential difference across any component in a circuit.