light, heat, thermodynamics, wave motion, sound, optics & oscillations - Category wise Question and Answer Practice Test with Solutions

light, heat, thermodynamics, wave motion, sound, optics & oscillations PRACTICE TEST [16 - EXERCISES]

set 1

set 2

set 3

set 4

set 5

set 6

set 7

set 8

set 9

set 10

set 11

set 12

set 13

set 14

set 15

set 16

Question : 16 [BPSC (Pre) 1999]

Following rays are used in the diagnosis of intestinal diseases

a) β-rays

b) α-rays

c) X-rays

d) γ-rays

Answer: (c)

Question : 17

From the following statements, concerning ideal gas at any given temperature T, select the correct ones:

  1. The coefficient of volume expansion at constant pressure is the same for all ideal gases
  2. The average translational kinetic energy per molecule of oxygen gas is 3KT (K being Boltzmann constant)
  3. In a gaseous mixture, the average translational kinetic energy of the molecules of each component is the same
  4. The mean free path of molecules increases with the decrease in pressure

a) 1, 3 and 4

b) 3 and 4

c) 1 and 2

d) 1, 2 and 3

Answer: (a)

γv = γp = $1/{273}$ K

E = $3/2$ RT  is the same for all ideal gases at the same temperature.

The mean free path, λ = ${kT}/{√{2πd^2p}}$; so it increases with a decrease in pressure.

Question : 18

Suppose a tunnel is dug along a diameter of the earth. A particle is dropped from a point, a distance h directly above the tunnel, the motion of the particle is

a) parabolic

b) simple harmonic

c) oscillatory

d) non-periodic

Answer: (c)

Question : 19 [UPPCS (Mains) 2005]

The wavelength extension of visible light is

a) Between 300-800 nm

b) Between 250-850 nm

c) Between 200-900 nm

d) Between 390-780 nm

Answer: (d)

Question : 20 [PCS (Pre) 2013]

For normal eyes what is the minimum distance for clear vision?

a) 20 cm

b) 15 cm

c) 10 cm

d) 25 cm

Answer: (d)

IMPORTANT general science mcq EXERCISES

set 8 Online Quiz

Click to Start..
1646 light thermodynamics sound optics and oscillations based general science mcq set 8 question answer pdf
general science mcq CATEGORIES

Recently Added Subject & Categories For All Competitive Exams

SSC STENO: Speed Time and Distance MCQ Questions Test PDF

Free Time and Distance Aptitude-based Practice multiple questions with solutions, Quiz series, Mock Test & Download PDF for SSC Steno (Grade C & D) 2024 Exam

29-Apr-2024 by Careericons

Continue Reading »

SSC STENO: Time & Work Questions Solved Problems with PDF

Free Time and work Aptitude-based Practice multiple questions with solutions, Quiz series, Mock Test & Downloadable PDF for SSC Steno (Grade C & D) 2024 Exam

27-Apr-2024 by Careericons

Continue Reading »

SSC STENO 2024: Free Reading Comprehension MCQ Test PDF

Top Reading Comprehension English Section-wise multiple choice questions and answers, Full Mock Test Series & Online Quiz for SSC Steno Grade C & D 2024 Exam

26-Apr-2024 by Careericons

Continue Reading »

Free Percentage Questions Answers for SSC STENO 2024 Exam

Important Top Percentage Aptitude-based multiple choice questions and answers practice quiz series, Online Mock Test PDF for SSC Steno Grade C & D 2024 Exam

25-Apr-2024 by Careericons

Continue Reading »