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G) NfflM Monjtt EdUCl!lonal T1111r1 JAMNABAI NAA21! SCftOOL f:':l oontactus@jns.ac.ln Narsee Mo1191 Bhavan, Narsee Monjee Marg, N.S.Road No. 7, J.V.P.D. Scheme, Vile Pa~e (W), Mumbai - 400 049, lncla. \_ +91 22 6915 7575 / 6915 7576 - iii\ www.jns.ac.ln SECON D PRELIMIN ARY EXAMIN ATION ..,. January 2023 PHYSICS \ Std.10 Time: 2 hrs, Marks:80 Date: 5.01.2023 Answer to this paper must be written o~ the paper provided separately. You will not be allowed to write during the first 15 minutes. .!g.~jp,tff!,~f:\il; ;'.,. :tt que1l ~}~ftj:\ _;?;/ /.;':-, ,,h{,~_;:~~i This time is to be s~nt in readltjg.J~ i' ,, ... The time given at the head oft!ifs,PdP,.e,r is the time alldw'e11for writing tfii!i'{ffeSWers. ;;}~ ' , , ;; Section A is compulsory. Attempt aiiy.jour questions from Section ~ The intended marks for questions or parts of~ stions are'gi;){,fP.J /1.~'I~ts []. ''\11, y ;{~)~/!$:f SECTION A (AttemjJh(f questions from this Section.) Question 1 Choose the correct answer to the questions from the giv'en options. (i) [15] A bucket full of water is lifted from a w~ll directly using hand in this case: (a) We apply effort iri po)Vnward direction. (b) We apply effort at c'dn:i~nient point on bucket. (c) We apply effort upwarilii<1inst gravity. (d) We apply effort downward\against gravity. [ l] Refractive index of glass is 3/2 with t~pect to air so on viewing it from air, the glass slab appears: (a) only 1/3 of its real thickness . (b) only 2/3 of its real thickness(c) only 1/3 of its apparent thickness (d) only 2/3 of its apparent thickness [I] : v (ii) 1
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