Comment on the experimental setup.

(a) What does the setup demonstrate ?
(b) What will happen to the level of water if a blower is placed close to setup ?
(c) Will the mercury level fluctuate (go up/down) if phenyl mercuric acetate is sprayed on leaves ?

Comment on the experimental setup What does the setup demonstrate?

Comment on the experiemntal setup Will the mercury level fluctuate (go up/down) if phenyl mercuric acetate is sprayed on leaves?

Comment on the experimental setup : What will happen to the level of water if a blower is placed close to setup ?

Comment on the experimental set up. Will the mercury level fluctuate (go up/down) if phenyl mercuric acetate is sprayed on leaves?

Comment on the experiemntal setup What will happen to the level of water if a blower is placed close to setup?

Comment on the experimental set up. What will happen to the level of water if a blower is placed close to set up.

Study the set-up given alongside and answer the questions given below: What will happen to the level of water in test tubes A & B?

A student focuses the image of a candle flame, placed at about 2 m from a convex lens of focal length 10 cm, on a screen. After that, he moves gradually the flame towards the lens and each time its image on the screen. (a) In which direction does he move the lens to focus the flame on the screen? (b) What happens to the size of the image of the flame formed on the screen ? (c ) What difference is seen in the intensity (brightnees) of the image of the flame on the screen ? (d) What is seen on the when the flame is very close (at about 5 cm) to the lens ?

A student focuses the image of a candle flame, placed at about 2 m from a convex lens of focal length 10 cm, on a screen. After that, he moves gradually the flame towards the lens and each time its image on the screen. (a) In which direction does he move the lens to focus the flame on the screen? (b) What happens to the size of the image of the flame formed on the screen ? (c ) What difference is seen in the intensity (brightnees) of the image of the flame on the screen ? (d) What is seen on the when the flame is very close (at about 5 cm) to the lens ?

Given below is an experimental setup to demonstrate a particular process in animals. Answer the questions that follow: After a few hours what will happen to the lime water in Bottle A and in Bottle B? Give suitable reasons for your answer.