Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
207 views
in Physics by (71.8k points)
closed by
It is desired to obtain an erect image of an object, using concave mirror of focal length of 12 cm.
(i) What should be the range of distance of an object placed in front of mirror ?
(ii) Will the image be smaller or large than the object ? Draw a ray diagram to show the formation of image in this case.
(iii) Where will the image of this object be, if it is placed 24 cm in front of the mirror ? Draw a ray diagram for this situation also to justify your answer.
Show the positions of the pole, the principal focus and the centre of curvature in the above ray diagrams.

1 Answer

0 votes
by (72.0k points)
selected by
 
Best answer
In a concave mirror an erect image will be obtained when the object is placed between pole and focus of the mirror.
Focal length, f = 12 cm
(i) Therefore, the range of object distance is between 0 cm to lt12 cm (from zero to less than 12 cm).
(ii) Image formed will be magnified, i.e., large than the object.
(iii) If the object is placed at 24 cm in front of the mirror, it means that object is placed at 2f, i.e., at the centre of curvature (at C) of the mirror.
image
The real, inverted and same size (of the object) image will also be formed at 24 cm.
image

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...