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Subject: Science, asked on 16/3/13

An object moves a distance 'f' between 2f and f of a concave mirror. The image would have travelled a distance of :

(a) f , (b) 2f, (c) f/2, (d) infinity ??

Subject: Science, asked on 16/9/19

Assertion: Pungent smelling has is produced when sulphur burns in air.
Reason: Sulphur is formed and reaction of sulphur with oxygen.

Subject: Science, asked on 19/6/18

(Worksheet 1) ques no. 10

Subject: Science, asked on 24/2/16

(a) Consider two pairs of medium pair A(1 & 2), pair(3 & 4). With the help of table point out in which medium light speeds up as it moves to pair A and in pairB respectively.
Serial Number 1 2 3 4 Medium Water Benzene Turpentine Alcohol Refraction Index 1.33 1.50 1.47 1.36
(b) Find refractive index of benzene with respect to water.

Subject: Science, asked on 1/5/15

a lady wanted to give a coating of whitewash to her home. she purchased quick lime CaO from tge market and dissolved it in water and immediately applied the same on the wall. in this process. she spoiled her hands and even suffered minor burns. a friend advised her not to be haste and keep it overnight before applying on the wall. she followed her advice and therewas now no problem. 1. what mistake was committed by the lady? 2. why did she suffer from burns? 3. how did the advice of her friend help her?

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