NEET 2013 Physics Elasticity MCQ Question
If the ratio of diameters, lengths and Young’s modulus of steel and copper wires shown in the figure are p, q and s respectively, then the corresponding ratio of increase in their lengths would be:
5q/2
7q/42
(7sp)/(5sp)
(5sp)/(7sp)
Correct Answer
Detailed Explanation
The increase in length is inversely proportional to the product of Young's modulus and cross-sectional area. Using the given ratios, the correct ratio is (7sp)/(5sp).
Found an issue with this question?
Related Questions
More from 2013
Ratio of longest wavelengths corresponding to Lyman and Balmer series in hydrogen spectrum is
According to law of photochemical equivalence, the energy absorbed (in ergs / mole) is given as (h = 6.62 x 10⁻²⁷ ergs, c = 3 x 10¹⁰ cm s⁻¹, Nₐ = 6.02...
DNA → iii → mRNA → ii → Protein Proposed by i The figure gives an important concept in the genetic implication of DNA. Fill the blanks A, B and C.