Physics and Measurement (JEE (Based on NTA Guidelines-IIT Engg.) Advanced Physics): Questions 1 - 3 of 12

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Question number: 1

» Physics and Measurement » Errors in Measurement

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Appeared in Year: 2013

MCQ▾

Question

Using the expression , one calculates the values of by measuring the corresponding angle in the range to . The wavelength is exactly known and the error in is constant for all values of . As increases from ,

Choices

Choice (4) Response

a.

the absolute error in remains constant.

b.

the fractional error in remains constant.

c.

the absolute error in increases.

d.

the fractional error in decreases.

Question number: 2

» Physics and Measurement » Dimensional Analysis and Its Applications

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Appeared in Year: 2016

MCQ▾

Question

A length – scale depends on the permittivity of a dielectric material. Boltzmann constant , the absolute temperature , the number per unit volume of certain charged particles, and the charge carried by each of the particles. Which of the following expression (s) for is (are) dimensionally correct?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 3

» Physics and Measurement » Dimensions of Physical Quantities

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Appeared in Year: 2013

Match List-Ⅰ List-Ⅱ▾

Question

Match List and List and select the correct answer using the codes given below the lists:

List-Ⅰ (Group I) List-Ⅱ (Group II)

(A)

Thermal conductivity

(i)

(B)

Boltzmann constant

(ii)

(C)

Planck constant

(iii)

(D)

Coefficient of viscosity

(iv)

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iii)
  • (iv)
  • (i)
  • (ii)

b.

  • (i)
  • (ii)
  • (iv)
  • (iii)

c.

  • (iv)
  • (ii)
  • (i)
  • (iii)

d.

  • (iii)
  • (ii)
  • (i)
  • (iv)

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