Question

❥︎ ᴇxᴘʟᴀɪɴ ᴛʜᴇ ᴀɴsᴡᴇʀ ɪɴ ᴅᴇᴛᴀɪʟ ᴡɪᴛʜ ᴇxᴘʟᴀɴᴀᴛɪᴏɴ :

➪ ǫᴜᴇ :- Tʜᴇ ᴍᴏsᴛ ᴀᴄᴄᴜʀᴀᴛᴇ ʀᴇᴀᴅɪɴɢ ᴏғ ᴛʜᴇ ʟᴇɴɢᴛʜ ᴏғ ᴀ 6.28 ᴄᴍ ʟᴏɴɢ ғɪʙʀᴇ ɪs -

➪ Oᴘᴛɪᴏɴs :-
1) 6 ᴄᴍ
2) 6.5 ᴄᴍ
3) 5.99 ᴄᴍ
4) 6.0 ᴄᴍ.

☞︎︎︎ Dᴏɴᴛ ᴄᴏᴘʏ ғʀᴏᴍ ᴀɴʏ ᴡʀʙsɪᴛᴇs ❌
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Answer 1

Answer:

Option 3) 5.99cm

Explanation:

hope it will be help u..

Answer 2

The most accurate reading of the length of a 6.28 cm long fibre is option (b) 6.5 cm.

Solution: Length of the fibre= 6.28 cm

The accuracy of a reading is the measure of the closeness of the measured value with the true value of any quantity.

Here, true value = 6.28 cm

Checking option (a):

Here, measured value= 6 cm

Closeness = 6.28 cm-6 cm

= 0.28 cm

The difference between measured and true value is 0.28 cm.

Checking option (b):

Here, measured value= 6.5 cm

Closeness= 6.28 cm-6.5 cm

= -0.22 cm

The difference between measured and true value is 0.22 cm.

Checking option (c):

Here, measured value= 5.99 cm

Closeness= 6.28 cm-5.99 cm

= 0.29 cm

The difference between measured and true value is 0.29 cm.

Checking option (d):

Here, measured value= 6.0 cm

Closeness= 6.28 cm-6.0 cm

= 0.28 cm

The difference between measured and true value is 0.28 cm.

Clearly, option (b) 6.5 cm with a difference of 0.22 cm is the closest to the true value of 6.28 cm.