Ans 2:
Class : Class 5
Vertically standing at left side of SON=SON|(|=MIRROR) So at first there will be N then O then S, So the answer will be NOS.
Ans 4:
Class : Class 6
Actually, I couldn't figure it out completely at first. . . I tried holding it in front of a real mirror, but I couldn't see it properly. . . anyway, thanks to all of you for removing my doubts!
Ans 7:
Class : Class 5
no, actually you were correct until you forgotten something.. on real mirrors you must also turn upside down.
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Ans 4:
Class : Class 7
how come option [A] is correct i did not understand i thought the answer would be option [D]
Ans 7:
Class : Class 9
it is just 5 frames in so just half a second tus the actual speed should not be 15 but 30
Ans 13:
Class : Class 7
oh I Understood thisCorrect option is A)Between points A and B the ball covers 5 equal distances=5xTherefore, 5x=15mx=3m10 images are taken in 1 second,Therfore 1 image takes 101​ sSpeed of the ball= 101​ 3​ =3×10=30m/s