[C] screen towards the mirror Remember, If the object is at infinity, screen should be moved towards mirror, so you will obtain to sharp image. Hence, as per the question, your answer will be Option [C].
[C] screen towards the mirror
Remember, If the object is at infinity, screen should be moved towards mirror, so you will obtain to sharp image. Hence, as per the question, your answer will be Option [C].
A student obtained a sharp image of a candle flame placed at the distant end of the laboratory table on a screen using a concave mirror to determine its focal length. The teacher suggested him to focus a distant building about 1 km far from the laboratory, for getting more correct value of the focal length. In order to focus the distant building on the same screen the student should slightly move the:
[C] screen towards the mirror Remember, If the object is at infinity, screen should be moved towards mirror, so you will obtain to sharp image. Hence, as per the question, your answer will be Option [C].
[C] screen towards the mirror
See lessRemember, If the object is at infinity, screen should be moved towards mirror, so you will obtain to sharp image. Hence, as per the question, your answer will be Option [C].
The xylem in plants are responsible for
[A] Transport of water Xylem tissues include tracheid’s, parenchyma, vessels, fibres and serve in the ascent of sap or water and minerals.
[A] Transport of water
See lessXylem tissues include tracheid’s, parenchyma, vessels, fibres and serve in the ascent of sap or water and minerals.
What type of change takes place when an iron nail is dipped in copper sulphate solution?
Chemical change.
Chemical change.
See lessWhat is the colour of copper sulphate solution?
Copper sulphate solution has blue colour.
Copper sulphate solution has blue colour.
See lessWhat is crystallisation?
The process of separation by pure crystals of a substance from its hot and supersaturated solution on cooling is called crystallisation.
The process of separation by pure crystals of a substance from its hot and supersaturated solution on cooling is called crystallisation.
See lessName the source from which litmus solution is obtained. What is the use of this solution?
(a) Litmus is extracted from Lichens. (b) Litmus is used as an acid-base indicator. (c) Acids turn blue litmus red. (d) Bases turn red litmus blue.
(a) Litmus is extracted from Lichens.
See less(b) Litmus is used as an acid-base indicator.
(c) Acids turn blue litmus red.
(d) Bases turn red litmus blue.
What is neutralisation reaction?
When an acid solution reacts with a base or metal, so as to form salt, the reaction is called neutralisation reaction.
When an acid solution reacts with a base or metal, so as to form salt, the reaction is called neutralisation reaction.
See less