Q.

4.50×102mL−(0.0245L) can be written to correct significant figures:

see full answer

Want to Fund your own JEE / NEET / Foundation preparation ??

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*
An Intiative by Sri Chaitanya

a

0.4255×102

b

4.255×102

c

42.55×102

d

4.26×102

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Given:(i) 4.50×102mL (ii) 0.0245L=24510000×1000mL=24.5mL=0.245×102mLSo, we have : 4.50×102mL (two decimal places)−0.245×102mL (three decimal  places)                                         =4.255×102mLSince, the result pertains to least decimal places (=2),4.255×102mL=4.26×102mLSince, the result pertains to least decimal places (=2),4.255×102mL=4.26×102mL
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

+91
whats app icon