Physics Times – July 2019

3.Sol: 0 16 3 Mg x k  2 (^2220) (^004) x v x x   x  (^0) 3 3 16 3 32 2 2 3 14 Mg K M v x g K M K      0 0 2 0 4 3 2 ...

For T.I.R at coated surface sin 3 c n   Appling snell’s law at first surface sin 3sin(75 ) c sin60 3sin(75 ) c 3 3sin(7 ...

Case 2: Case 3: (^30) 2 L L 2 2 0 0 3 (^32) 2 2 T f f L      2 0 2 T T  (^50) 4 L L 3 3 0 0 5 (^53) 2 4 T f f L     ...

Read the assertion and reason carefully to mark the correct options given below: (a) If both Assertion and Reason are true and R ...

Assertion:The flash of lightening is seen before the sound to thunder is heard. Reason: Speed of sound is greater than speed of ...

An earthen pitcher used in summer cools water in it essentially by evaporation of water from its porous surface. If a pitcher c ...

1.1. 2. 3. 4. 5. c 2. a 3. d 4. d 5. d 1.Sol: Rate of vaporization of water^20 g hr  Water vaporized in 2hr 40^40 1000  g kg ...

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