Home › CBSE Class 11 › Physics › Physics and Measurement › Per NCERT §1.3, the diameter of Earth ≈ 1.28 × 1…
Per NCERT §1.3, the diameter of Earth ≈ 1.28 × 10⁷ m has order of magnitude equal to which value?
A10
B8
C7
D6
Answer & Solution
Correct answer: C. 7
NCERT §1.3: a = 1.28 ≤ 5, so round down → 10⁷ m. Order of magnitude = exponent = 7.
Related questions
Doubling the mass while holding the net force fixed changes the acceleration to:Doubling the net external force on a fixed mass changes the acceleration to:When a situation involves more than one object, it is important to analyse the motion of:The velocity of the centre of mass of a system changes only if there is:Contact forces such as tension, friction and the normal force are said to result from:Combining the two proportionalities for acceleration yields which law?Acceleration is described as exactly linearly proportional to which quantity?Acceleration is described as exactly inversely proportional to which quantity?