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NEETPhysicsGravitation

A satellite is in a circular equatorial orbit of radius 7000 km around the earth. If it is transferred to a circular orbit of double of radius :- ( array |c|l|c|l| & Column 1 & & Column 2 (A) & Angular momentum & (P) & Increases (B) & Area of earth covered & (Q) & Decreases & by satellite signal & & (C) & Potential energy & (R) & Becomes double (D) & Kinetic energy & (S) & Becomes half array )

Options

  1. A(A) ( ) Q; (B) ( ) P; (C) ( ) P, R; (D) ( ) Q, S
  2. B(A) ( ) P; (B) ( ) P; (C) ( ) P; (D) ( ) Q, S
  3. C(A) ( ) Q; (B) ( ) Q; (C) ( ) P, S; (D) ( ) P, R
  4. D(A) ( ) P; (B) ( ) Q; (C) ( ) P; (D) ( ) P, R

Correct answer

B. (A) ( ) P; (B) ( ) P; (C) ( ) P; (D) ( ) Q, S

Step-by-step solution

(r 2 r ) (A) Angular Momentum : ( L = mvr = m GM r ). r ( L r r L ) (B) Area covered will ( ) (C) ( U =- GMm r =- U ₀ ) ( U ^ =- GMm 2 r =- ( U ₀ 2 ) ) P.E. will ( ) (D) ( KE = GMm 2 r KE ) will ( )

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