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Reading 3 is correct answer.....
Because angle of incidence i (45) is equal to angle of reflection r(45) obeying laws of reflection
Because angle of incidence i (45) is equal to angle of reflection r(45) obeying laws of reflection
smarty29:
are A ka solution bta
mass gravitational potential energy and gravity =10m/s2 is given use formula G.P.E=mgh
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no. 3 is correct 45 = 45
because angle of incidence is equal to the angle of reflection
because angle of incidence is equal to the angle of reflection
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