Scientific Instruments

Chapter-40 



Read the given descriptions about some scientific instruments and name them by using Snaily's clue box

āĻ•িāĻ›ুāĻŽাāύ āĻŦৈāϜ্āĻžাāύিāĻ• āϏঁāϜুāϞিā§° āĻŦিāώāϝ়ে āĻĒ্ā§°āĻĻāϤ্āϤ āĻŦā§°্āĻŖāύাāĻŦোā§° āĻĒāĻĸ়া āφ⧰ু āĻļাāĻŽুāϕ⧰ āĻ•্āϞু āĻŦāĻ•্āϏ āĻŦ্āĻ¯ā§ąāĻšাā§° āϕ⧰ি āϏেāχāĻŦোā§°ā§° āύাāĻŽ āĻĻিāϝ়া

Snaily's Clue Box

 

 a) Telescope

b) Binoculars

c) Stethoscope

d) Seismograph

e) Rain Gauge

f) Lactometer

g) Thermometer

h) Barometer 


1. To measure atmospheric pressure ____________.

ā§§. āĻŦাāϝ়ুāĻŽāĻŖ্āĻĄāϞীāϝ় āϚাāĻĒ āϜোāĻ–াā§° āĻŦাāĻŦে __________।

Ans. h) Barometer  (āĻŦেā§°োāĻŽিāϟাā§°) 

2. To measure the temperature of human body ____________.

⧍. āĻŽাāĻ¨ā§ą āĻļā§°ীā§°ā§° āωāώ্āĻŖāϤা āϜোāĻ–াā§° āĻŦাāĻŦে ____________ ।

Ans. g) Thermometer (āĻĨাā§°্āĻŽোāĻŽিāϟাā§°)

3. To determine the purity of milk ____________.

ā§Š. āĻ—াāĻ–ীā§°ā§° āĻŦিāĻļুāĻĻ্āϧāϤা āύিā§°্āϧাā§°āĻŖ āϕ⧰িāĻŦāϞৈ __________।

Ans. f) Lactometer (āϞেāĻ•্āϟোāĻŽিāϟাā§°)

4. To measure rainfall ___________.

ā§Ē. āĻŦā§°āώুāĻŖ āϜোāĻ–াā§° āĻŦাāĻŦে ___________।

Ans. e) Rain Gauge ( ā§°েāχāύ āĻ—āϜ)

5. To measure and record earthquake shock __________ .

ā§Ģ. āĻ­ূāĻŽিāĻ•āĻŽ্āĻĒā§° āĻļ্āĻŦāĻ• āϜোāĻ–া āφ⧰ু ā§°েāϕ⧰্āĻĄ āϕ⧰া __________ ।

Ans. d) Seismograph ( āϚিāϚāĻŽোāĻ—্ā§°াāĻĢ)

6. To hear and analyse movements of heat and lungs ____________.

ā§Ŧ. āϤাāĻĒ āφ⧰ু āĻšাঁāĻ“āĻĢাঁāϓ⧰ āĻ—āϤিāĻŦিāϧি āĻļুāύিāĻŦāϞৈ āφ⧰ু āĻŦিāĻļ্āϞেāώāĻŖ āϕ⧰িāĻŦāϞৈ ____________।

Ans. c) Stethoscope (āώ্āϟেāĻĨোāϏ্āĻ•োāĻĒ)

7. To get a magnified view of distant objects by both eyes ____________.

ā§­. āĻĻুāϝ়োāϟা āϚāĻ•ুā§°ে āĻĻূā§°ā§ąā§°্āϤী āĻŦāϏ্āϤুāĻŦোā§°ā§° āĻāĻ• āĻŦিāĻŦā§°্āϧিāϤ āĻĻৃāĻļ্āϝ āĻĒ্ā§°াāĻĒ্āϤ āϕ⧰িāĻŦāϞৈ ___________।

Ans. b) Binoculars ( āĻŦাāχāύোāĻ•ুāϞাā§°)

8. To view objects in the sky ____________.,

ā§Ž. āφāĻ•াāĻļāϤ āĻŦāϏ্āϤুāĻŦোā§° āϚাāĻŦāϞৈ ____________।

Ans. a) Telescope (āĻĻূā§°āĻŦীāĻŖ) 



Type By- Jatin Nath






Post ID: DABP004354