What was the length of the smallest pencil you have used-How long is this pencil- Guess Measure it using a scale- How good is your guess- We can see that Anju used a lens to make it look bigger-

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Byju's Answer

Standard XII

Physics

Other Eyes Defects

What was the ...

Question

What was the length of the smallest pencil you have used?
How long is this pencil? Guess ________ cm
Measure it using a scale. How good is your guess?
We can see that Anju used a lens to make it look bigger.

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Solution

The smallest pencil that I had used was about 1 cm long.

I think the given pencil is more than 3 cm.

With the help of scale, the length of the pencil comes out to be 3.6 cm.

So, my guess was correct.

Disclaimer: The length of the smallest pencil that you have used varies from student to student. The answers provided here are for reference only.

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Similar questions

Q. How would a pencil look like if you see it through a convex lens? (Assume that the pencil is close to the lens). Is the image real or virtual ?

Q. How would a pencil look like if we see it through a concave lens ?

Check your guess
(a) Measure the yellow rectangle. It is ________ cm long.
(b) How many stamps can be placed along its length? ________
(c) How wide is the rectangle? ________ cm
(d) How many stamps can be placed along its width? ________
(e) How many stamps are needed to cover the rectangle? ________
(f) How close was your earlier guess? Discuss.
(g) What is the area of the rectangle? ________ square cm
(h) What is the perimeter of the rectangle? ________ cm

1. Sit in groups.

2. Look at your friend's face and describe what you see.
Use words like long, round, oval, slanted, sharp, flat to help you.
You can use other words also.
__________________________________
__________________________________
__________________________________

3. What is your favourite fruit?Describe it in five sentences.

(a) How does it smell?

__________________________________

(b) How does it look?

__________________________________

(d) When you bite it what sound does it make?

__________________________________

(e) How does it taste?

__________________________________

Q. Which line is longer? A or B? Measure each line and write how long it is in centimetres. How good is your guess?

Which line is longer? C or D? Measure each line. How good is your guess?

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What was the length of the smallest pencil you have used? How long is this pencil? Guess ________ cm Measure it using a scale. How good is your guess? We can see that Anju used a lens to make it look bigger.

What was the length of the smallest pencil you have used?
How long is this pencil? Guess ________ cm
Measure it using a scale. How good is your guess?
We can see that Anju used a lens to make it look bigger.