Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Sumaila Ali Choudhary??? 5 years, 2 months ago
- 2 answers
Secret ??? 5 years, 2 months ago
Posted by Anuj Mandal 5 years, 2 months ago
- 5 answers
Archana Nair 5 years, 2 months ago
Basant Singh 5 years, 2 months ago
Secret ??? 5 years, 2 months ago
Subham Gite 5 years, 2 months ago
Sumaila Ali Choudhary??? 5 years, 2 months ago
Posted by Nisha Choudhary 5 years, 2 months ago
- 1 answers
Posted by Aditi Ringusia 5 years, 2 months ago
- 5 answers
Posted by Aditi Ringusia 5 years, 2 months ago
- 5 answers
Posted by Aditi Ringusia 4 years, 9 months ago
- 1 answers
Sia ? 4 years, 9 months ago
u = - 18 cm
v = 4 cm
1 / f = 1 / v + 1 / u
1 / f = 1 / 4 + 1 / (- 18)
1 / f = 1 / 4 - 1 / 1 8
1 / f = 9 - 2 / 36 = 7 / 36
f = 36 / 7 cm
focal length is positive so mirror is convex.
R = 2 × 36 / 7
= 72 / 7 cm
Posted by Sumaila Ali Choudhary??? 5 years, 2 months ago
- 5 answers
Sumesh ☺️☺️☺️ 5 years, 2 months ago
Posted by Aditi Ringusia 4 years, 9 months ago
- 1 answers
Sia ? 4 years, 9 months ago
radius of curvature = 90 cm
focal length = r/2 = +45 cm(since it is on the direction on the incident light)
object distance, u = - 15 cm (since it is on the opposite direction of the incident light)
we have to find v= ?
using mirror formula we get ,
1/v + 1/u = 1/f
so 1/ v = 1/f - 1/u
1/v = 1/ 45 - (1/-15) = 1/45 + 1/15 = 4/45
so v =45 / 4 cm
therefore image distance = 45 / 4 cm (positive sice it is in the direction of incident light)
Posted by Sumit Pandey 5 years, 2 months ago
- 1 answers
Aditi Ringusia 5 years, 2 months ago
Posted by Aditi Ringusia 4 years, 9 months ago
- 1 answers
Sia ? 4 years, 9 months ago
Large distance =infinity
The image will form on principle focus of convex mirror because rays coming from infinity when touch mirror get diverged but virtually they meet at principle focus
Radius of curvature=40cm
Focal length=Radius of curvature/2
f=40/2
f=20cm
Posted by Neetu Kumari 5 years, 2 months ago
- 1 answers
Subham Gite 5 years, 2 months ago
Posted by Teresa Singh ✌🏻 5 years, 2 months ago
- 4 answers
Sumesh ☺️☺️☺️ 5 years, 2 months ago
Teresa Singh ✌🏻 5 years, 2 months ago
Sumesh ☺️☺️☺️ 5 years, 2 months ago
Sumesh ☺️☺️☺️ 5 years, 2 months ago
Posted by Malini B 4 years, 11 months ago
- 1 answers
Sia ? 4 years, 11 months ago
Posted by Good Student 5 years, 2 months ago
- 3 answers
Mayank Dagar 5 years, 2 months ago
Subham Gite 5 years, 2 months ago
Posted by Adrsh Agrahari 5 years, 2 months ago
- 1 answers
Posted by Anish Talreja 5 years, 2 months ago
- 0 answers
Posted by S.D D 5 years, 2 months ago
- 1 answers
Sia ? 4 years, 11 months ago
Posted by Jathin Tm 5 years, 2 months ago
- 3 answers
Harsh Janghu 5 years, 2 months ago
Raghav 10Ai 5 years, 2 months ago
Posted by Ravi Ka 5 years, 2 months ago
- 0 answers
Posted by Karan Singh Rathore 4 years, 9 months ago
- 1 answers
Sia ? 4 years, 9 months ago
Posted by Shivani Kumari 5 years, 2 months ago
- 2 answers
Sumesh ☺️☺️☺️ 5 years, 2 months ago
Posted by Amisha Verma 5 years, 2 months ago
- 4 answers
Posted by ?Yash ? 5 years, 2 months ago
- 5 answers
Posted by Vishalsingh Tomar 5 years, 2 months ago
- 0 answers
Posted by Navuluru Chathrika 5 years, 2 months ago
- 2 answers
Mayank Dagar 5 years, 2 months ago
Posted by Navuluru Chathrika 5 years, 2 months ago
- 1 answers
Posted by Mariya S.? 5 years, 2 months ago
- 2 answers
Manshi H... 5 years, 2 months ago
Surya Charan 5 years, 2 months ago

myCBSEguide
Trusted by 1 Crore+ Students

Test Generator
Create papers online. It's FREE.

CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
myCBSEguide
Sumaila Ali Choudhary??? 5 years, 2 months ago
2Thank You