Per NCERT §7.4, the value of the universal gravitational constant G is approximately which?
A6.67 × 10⁻¹¹ N m² kg⁻²
B6.67 × 10⁻⁸ N m² kg⁻²
C9.81 N m² kg⁻²
D8.85 × 10⁻¹² N m² kg⁻²
Answer & Solution
Correct answer: A. 6.67 × 10⁻¹¹ N m² kg⁻²
NCERT §7.4: G = 6.67 × 10⁻¹¹ N m² kg⁻². First measured by Henry Cavendish in 1798 using a torsion balance.
Related questions
Tycho Brahe recorded his observations using:Kepler's three laws describe the motion of:The low escape speed of the moon explains why it has no:The moon's escape speed compared with the earth's is smaller by about:The escape speed for the moon works out to about:The law of periods uses which measurement of the ellipse?By the law of periods, the square of the period is proportional to:The law of areas explains why a planet moves slower when it is: