Question

Simplify:
(1) 4x(-2) 1
(ii) -5x (-6) (-1)
(iv) -14X(-5) * (-8)
(v) - 17 * (-15) * (-12)
(*5( *9*
12
(111) -15 ~ (8) * (283) 0
(vi) -7 29 (-8) 0
2
x 25 x 238
x
5
​

Answer 1

Answer:

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When a light wave travels from denser to rarer medium, its

P) velocity decreases R) wavelength increases Q) frequency remains unchanged

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