# 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]

Question : 1

Consider the following statements:

1. Speed of wave = $\text"wave length"/\text"time period"$.
2. Wavelength is the distance between two nearest particles in phase.
3. The flash of lightening is seen before the sound of thunder is heard.
4. Speed of sound is greater than speed of light.
Which of the statements given above are correct?

a) 1, 2 and 3

b) 1 and 2

c) 2 and 3

d) 1, 2, 3 and 4

Speed of sound at NTP = 332 m/s,

whereas speed of light is 3 × 108

Question : 2 [UPPCS (Pre) 1993]

The hand burns more by steam comparatively to boiling water, because

a) Steam sneaked into the body

b) The steam has more power

c) The steam has latent heat

d) Steam is gig

Question : 3 [UPPCS (Pre) 2015]

The number of images of an object placed between two parallel mirrors is

a) Six

b) One

c) Two

d) Infinite

Question : 4 [UPPCS (Pre) 2014]

Sound waves do not travel in

a) Liquids

b) Gases

c) Solids

d) Vacuum

Question : 5 [IAS (Pre) 1999]

Strips of two metals A and B are firmly jointed together as shown in the figure. On heating, A expands more than B does. If this jointed strip is heated, then it will appear as

a)

b)

c)

d)

## Recently Added Subject & Categories For All Competitive Exams

#### Important General Science Biology Practice MCQ Questions

Top General Science Biology In Human Welfare Based Multiple Choice Questions And Answers, Practice MCQ Test For All Competitive Exams, NEET, SSC, Interview

December-06-2022 by Careericons

#### Top 199+ General Science Biology Practice Test, MCQ PDF

Most Important General Science Biology Human Welfare Multiple Choice Questions And Answers (MCQ) PDF, Practice Test For All Competitive Exams, SSC, NEET, RRB

December-01-2022 by Careericons

#### New General Science Biology MCQ Online Practice Test, PDF

Top Most General Science Biology Food Production Multiple Choice Questions And Answers (MCQ), Online GK Practice Test, PDF For All Competitive Exams, NEET

November-29-2022 by Careericons

#### 150+ Frequently Asked Biology MCQs for Competitive Exams

Biology Frequently Asked Multiple Choice Questions And Answers (MCQ) For All Competitive Exams. General Science GK Practice Test, PDF For BANK, SSC, RAILWAY

November-23-2022 by Careericons