Is the ‘fog’ observed when the pressure in the bottle is high or when it is low?

When is the pressure inside the bottle higher?

Osmotic pressure of a cell is zero when

What do you observe when : Opening the soda water bottle.

When a train is approaching the observer, the frequency of the whistle is 100 cps. When it has passed observer, it is 50 cps. Calculate the frequncy when the observer moves with the train.

When a train is approaching the observer, the frequency of the whistle is 100 cps. When it has passed observer, it is 50 cps. Calculate the frequncy when the observer moves with the train.

Name the process that occurs in the plant when root pressure is high and the transpiration is low.

When the ventricular pressure is low these valves get closed ?

Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure. This negative pressure is achieved when

When a train approaches a stationary observer, the apparent frequency of the whistle is n' and when the same train recedes away from the observer, the apparent frequency is n'' . Then the apperent frquency n when the observer sitting in the train is :

State what is observed when nitric acid is kept in a reagent bottle for a long time .