The viscous force exists when there is a relative motion between the layers of the fluid. State true or false: "The viscosity of gases decreases with an increase in temperature."

State True or False: As velocity of a given mass decreases wave length increases

The viscous force exists when there is a relative motion between the layers of the fluid. The speed time graph of a falling sky diver is shown below. During the fail he opens his parachute. Which part of the graph shows the sky diver falling with terminal velocity?

State whether the following statement is true or false- "The value of resistance of a metal increase with the rise of temperature"

Fill in the blanks using the word from the list appended with each statement. Viscosity of gases cdots with temperature (increase /decrease)

Friction is a force acting between two surfaces in contact,when there is a relative motion between them.Consider a car moving over a horizontal road.What will be the direction of frictional force acting between the road and tyre?

Friction is the force which opposes the relative motion between two surfaces in contact with each other. What is a limiting static friction?State the laws related to this.

State if each of the following statements is true or false. Work done in the motion of a body over a closed loop is zero for every force in nature.

Assertion: Solubility of n-alcohl in water decreases with increase in its relative molar mass. Reason: The relative proportion of their hydrocarbon part in alcohols increases with increasing molar mass which permits enhanced hydrogen bonding with water. 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.