Two identical scales are joined such that 21 cm mark of one scale is coinciding with 21 cm mark on the other scale. A line ‘X’ is measured as shown. Find the length of the line.

27 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

14 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

14 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

28 cm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D 28 cm
The length of the line measured from left scale = 21 cm.
The length of the line measured from right scale = 21 - 14 cm = 7 cm.
Thus, the total length of the line X = 21 + 7 = 28 cm.

Suggest Corrections

Similar questions

Q. The smallest division on main scale of a vernier callipers is

1 m m

and

10

vernier divisions coincide with

9

scale divisions. While measuring the length of a line, the zero mark of the vernier scale lies between

10.2 c m

and

10.3 c m

and the third division of vernier scale coincide with a main scale division. Determine the least count of the callipers.

Q. The smallest division on main of a verier calipers is 1 mm and 10 verier division coincide with 9 main scale division. While measuring length of a line the zero mark pf the verier scale lies between 10.2 cm and 10.3 cm and the third division of the verier scale coincide with the main scale division then

The least count of a vernier calliper is 0.01 cm and its zero error is – 0.03 cm. While measuring the length of a rod, the main scale reading is 4.6 cm and 8^th division on vernier scale is in line with a marking on the main scale. Calculate the length of the rod.

Q. Consider the following data for a vernier calliper:
10 main scale division = 1 cm.
10 vernier division matches with 9 Main scale division.

While measuring the zero error of the vernier we see that zero of vernier scale is to the right of the zero marking of the main scale with

6^{t h}

vernier division coinciding with main scale divisions.

The actual reading for length measurement is 4.3 cm with 2nd vernier division coinciding with main scale graduation.

Estimate the length.

6^{t h}

vernier division coinciding with main scale divisions.

The actual reading for length measurement is 4.3 cm with 2nd vernier division coinciding with main scale graduation.

Estimate the length.

Join BYJU'S Learning Program

Two identical scales are joined such that 21 cm mark of one scale is coinciding with 21 cm mark on the other scale. A line ‘X’ is measured as shown. Find the length of the line.

The correct option is D 28 cmThe length of the line measured from left scale = 21 cm. The length of the line measured from right scale = 21 - 14 cm = 7 cm. Thus, the total length of the line X = 21 + 7 = 28 cm.

The correct option is D 28 cm
The length of the line measured from left scale = 21 cm.
The length of the line measured from right scale = 21 - 14 cm = 7 cm.
Thus, the total length of the line X = 21 + 7 = 28 cm.