Question

While using travelling microscope in an experiment one find that one main scale division length is 1 mm and 10 VSD = 9 MSD. When this microscope is focused over a glass slab which is placed over a spot. Then which of the reading is correctly written in terms of significant figure –

• A. 1.6 cm
• B. 1.62 cm
• C. 1.622 cm
• D. 2 cm

Answer 1

Answer: (B)

1.62 cm

Answer 2

LC = $\frac { 1 \mathrm {~mm} } { 10 }$ = .1mm = .01 cm.

\Reading should be written upto 2 places

after decimal (in cm)