# 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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