Home
Class 12
PHYSICS
Statement-1: Machine parts are jammed in...

Statement-1: Machine parts are jammed in winter.
Statement-2: The viscosity of lubricant used in machine part decrease at low temperature.

A

If both the assertion and reason are true statement and reason is correct explanation of the assertion .

B

If both the assertion and reason are true statement but reason is not a correct explanation of the assertion .

C

If the assertion is true but the reason is a false statement.

D

If both assertion and reason are false statements.

Text Solution

AI Generated Solution

Promotional Banner

Similar Questions

Explore conceptually related problems

Why do the machine parts get jammed in winter?

Statement-1: If an annular disk is heated uniformly then outer radius increases but inner radius decreases. Statement-2: Temperature gradient of a rod is constant in steady state. Staement-3: Density of metal decreases with increase in temperature.

Statement-1 : Pendulum clocks go slow in summer and fast in winter. Statement-2 : The length of the pendulum used in clock increases in summer.

Statement-1: Specific heat capacities of all substance approach zero as T to O Statement-2: Molecular motion ceases at very low temperature.

Statement-I: At low temperature, DH is the dominant factor for spontaneity of a reaction. Statement-II: The opposing factor TDS remains very small, at low temperature.

Read the give statements and select the correct option. Statement 1 : Amphibians often hibernate in winter and aestivate in summer. Statement 2 : They are poikilothermic animals and cannot regulate body temperature.

Consider the arrangement shown. The arrangement is heated to increase the temperature. ltBrgt Statement-1: On heating, x increases, whereas Y decreases. Statement-2: The value x is a dimension of the body being heated, whereas y is width of gap.

Statement-1: Fahrenheit is the smallest unit measuring temperature Statement-2: Fahrenheit was the first temperature scale used for measuring temperature

Statement-1 : Entropy of all elements is zero at zero Kelvin. Statement-2 : Standard entropy of all elements is greater than zero. Statement-3 : Entropy of all elements and compounds decreases with decrease of temperature and becomes zero at absolute zero temperature.

Statement-1: Peroxomonosulphuric acid has low basicity. Statement-2: It has one O-O bond.