Question 74 The diameter of Earth is 12756000 m- In 1996- a new planet was discovered- whose diameter is 5-86 of the diameter of Earth- Find the diameter of this planet in km-

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Standard IX

Physics

Orbital Velocity

Question 74 T...

Question

Question 74

The diameter of Earth is 12756000 m. In 1996, a new planet was discovered, whose diameter is $\frac{5}{86}$ of the diameter of Earth. Find the diameter of this planet in km.

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Solution

Given, diameter of Earth $= 12756000 m = \frac{12756000}{1000} = 12756$ km
According t the question,
Diameter fo new planet $= \frac{5}{86}$ of diameter of Earth
$= \frac{5}{86} \times 12756 = \frac{63780}{86} = 741.62 k m$

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Question 74 The diameter of Earth is 12756000 m. In 1996, a new planet was discovered, whose diameter is 586 of the diameter of Earth. Find the diameter of this planet in km.

Given, diameter of Earth =12756000m=127560001000=12756km According t the question, Diameter fo new planet =586 of diameter of Earth =586×12756=6378086=741.62km

Question 74

The diameter of Earth is 12756000 m. In 1996, a new planet was discovered, whose diameter is $\frac{5}{86}$ of the diameter of Earth. Find the diameter of this planet in km.

Given, diameter of Earth $= 12756000 m = \frac{12756000}{1000} = 12756$ km
According t the question,
Diameter fo new planet $= \frac{5}{86}$ of diameter of Earth
$= \frac{5}{86} \times 12756 = \frac{63780}{86} = 741.62 k m$