Multiple Choice Questions

Chapter 12 – Geometrical Optics

Long Questions

Chapter 12 – Geometrical Optics

Exercise Questions

Chapter 12 – Geometrical Optics

Exercise Numerical

Chapter 12 – Geometrical Optics

1. Karam

exercise multple question no 2 wrong correct answer 15 cm

1. Sahar

Numerical No.12.5 is wrong
Thanks!!!

1. Fatima

Inka answer right hai.book mai wrong given hai

2. Zaid

Thanks

1. Zuhaa Shoukat

12.5 numerical’s answer is correct book pr answer wrong ha mn ne khud solve kar ke dekha ha

3. Zaid

Do you send me correct numerical

1. Zuhaa Shoukat

Zaid bro
Can ,I send u?

4. Saffi Islam

No Brother,
is correct. The answer written in the text book is wrong.
Not 77.62
Thanks you so much

1. Eman

Review questions kahan hai ??

5. Amna

Yes its 77.62 because it is convex lens q and f should be negative.

2. Fatima

Sir,numerical 2 ke (a) portion mai answer negative kyun nhi hai?
It should be negative as in calculation 55 was negative

1. Author

Because distance can’t be negative.

2. terisa

its not convex lens its convex mirror here f will be positive and q will be negative
study topic of spherical mirrors carefully and you will know

3. Ahmed talal

4. Zujaja

In numerical 12.2 it is 10.5 not 105

1. Author

No mistake, point is shifted to right. so it becomes 10/105

5. terisa

sir in side box information question no 4
tell the power of lens not the position of object answer that what is power of lens in diopters

6. Ali Khan

bro agr apka 12.5 numerical thk bhi ho to hm ye follow nhi kr skty kyu ki hamary examiners lakeer ky faqeer hoty wo skill nhi just ability to learn everything word by word yani ratta check krte

1. Amina

ya bro you are right 👍 hamare examiners no writing skills no learning skills

7. Mina toor

8. Aasil Hamid

12.5 waley numerical ka ans galat hai us me focal length bhi negative aani hai kion k convex mirror ki focal length negative hoti hai

1. Organizer

ok, we’ll check it.

9. imran

We Need new book notes ( national book foundation ) Test Edition

Numerical no.5 is wrong as focal length and image is negative so the ans in book is correct.Please check it.

1. Author

Ok, We’ll check it.

11. mubeenmalik

Numerical no is wrong plz check it😊

12. 🅰🆄🆃🅷🅾🆁

numerical 5 is righ guys

13. Anjum

1. Organizer

ok, we’ll check it.

14. Ismail Umer Farooq

The numerical 12.6 is wrong as the answer of part (b) is 3.84. My teacher solved it on the board but I forgot to write it down.

1. Organizer

ok, we’ll check it.

15. Mohid Ahmed

12.5 numerical is correct because it is a convex mirror not a concave mirror therefore focal length is +ve and the answer is 77.625