Consider a constellation of 3 stars- A - B and C forming a right triangle with angle ABC -90- and angle BAC -30- If the distance between star A and B is 3 -3- 1013 km- then how much time does light take to travel from star C to B with a speed of 3 - 108 m - s -A- -3- 105 secB- 104 secC- 105 secD- -3- 104 sec

The correct option is C 105 sec ...

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Standard VII

Physics

Constellations

Consider a co...

Question

Consider a constellation of 3 stars, A, B and C forming a right triangle with angle ABC = 90^o and angle BAC = 30^o. If the distance between star A and B is 3√3 x 10¹³ km, then how much time does light take to travel from star C to B with a speed of 3 x 10⁸ m/s?

√3 x 10⁵ sec

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10⁴ sec

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10⁵ sec

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√3 x 10⁴ sec

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Solution

The correct option is C
10⁵ sec

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