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19 May, 23:12

The mass of a black hole with the same radius as the Sun is 4.7X10^35kg. How many times more massive is this black hole than the mass of the Sun (2X10^30kg)

a. 5

b. 160

c. 10500

d. 235000

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Answers (1)
  1. 20 May, 02:35
    0
    The correct option is: d. 235000

    Explanation:

    Given: The radius of the black hole and the sun is equal

    The mass of the black hole = 4.7 * 10³⁵ kg

    And the mass of the Sun = 2 * 10³⁰ kg

    Therefore, in order to find out how much massive is the black hole than the Sun, ratio of the mass of the black hole and the Sun is taken

    ⇒4.7 * 10³⁵ kg : 2 * 10³⁰ kg = 2.35 * 10⁵ = 235000

    Therefore, the black hole is 235000 times massive than the Sun.
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