We wish to obtain an erect image of an object using a concave mirror of focal length 20 cm. what would you expect if the mirror were convex mirror of same focal length?
Answer question number 01 to 05 on the basis of your understanding of the above paragraph and the related studied concepts:
01 - What should be the range of distance of the object from the concave mirror?
(a) 20 cm (b) infinity (c) more than 20 cm (d) less than 20 cm
02 - What would be the nature of the image in the concave mirror?
(a) real (b)
virtual
(c) real or virtual depending upon the actual distance of the object (d) cannot predict.
03 - In concave mirror, is the image larger or smaller than the object? (a) larger (b) smaller (c) larger or smaller (d) cannot say. 04 - In a convex mirror, the image formed is-
(a) real and inverted always (b) virtual and erect always 5
(c) real or virtual depending upon the actual distance of the object
(d) cannot predict
05 - From the study of reflection of light at concave mirror, a student arrived at the following results:
(i) When object is at infinity, a real image is formed at the focus of the mirror.
(ii) When object is beyond centre of curvature of the mirror, a real image is formed between F and centre of curvature of the mirror
(iii) When the object is at the centre of curvature of the mirror, a real image is formed at the centre of curvature of the mirror.
(iv) When object lies between pole and principle focus of the mirror, the image is virtual, erect and magnified.
Choose the correct statement.
(a) All except (i) (b) All except (ii) (c) All except (iii) (d) All the four (i) to (iv)
Q.02 A Convex mirror used as a rear view mirror on an automobile has a radius of curvature of 3 m. A bus is located at 5 m from the mirror.
Answer Question number 06 to 10 on the basis of your understanding of the above paragraph and the studied concepts:
01 - What is the position of the image of the bus?
(a) 1.15 m (b) 2.30 m (c) 3 m (d) none of the above
02 - What is the focal length of the mirror?
(a) 3 m (b) 1.5 m (c) 6 m (d) 2 m 03 - What is the magnification of the image?
(a) 0.23 (b) – 0.23 (c) 1 (d) infinity
04 - What is the position of the image of the bus when distance of bus from the convex mirror is 1.5 m?
(a) 2 m (b) 3 m (c) 0.75 m (d) 2.36 m
05 - A student performed several experiment using a convex mirror, and listed his observations as follows:
(i) Image of an object is always real and inverted
(ii) The image is always magnified
(iii) When object is at the pole of the mirror, image is virtual, erect and of same size as the object
(iv) For any position beyond the pole of the mirror, the image is virtual, erect and smaller in size than the object
Which are the correct observations?
(a) (i) and (ii) only (b) (i) and (iii) only (c) (iii) and (iv) only (d) all the four
Answers
Answer:
We wish to obtain an erect image of an object using a concave mirror of focal length 20 cm. what would you expect if the mirror were convex mirror of same focal length?
Answer question number 01 to 05 on the basis of your understanding of the above paragraph and the related studied concepts:
01 - What should be the range of distance of the object from the concave mirror?
(a) 20 cm (b) infinity (c) more than 20 cm (d) less than 20 cm
02 - What would be the nature of the image in the concave mirror?
(a) real (b)
virtual
(c) real or virtual depending upon the actual distance of the object (d) cannot predict.
03 - In concave mirror, is the image larger or smaller than the object? (a) larger (b) smaller (c) larger or smaller (d) cannot say. 04 - In a convex mirror, the image formed is-
(a) real and inverted always (b) virtual and erect always 5
(c) real or virtual depending upon the actual distance of the object
(d) cannot predict
05 - From the study of reflection of light at concave mirror, a student arrived at the following results:
(i) When object is at infinity, a real image is formed at the focus of the mirror.
(ii) When object is beyond centre of curvature of the mirror, a real image is formed between F and centre of curvature of the mirror
(iii) When the object is at the centre of curvature of the mirror, a real image is formed at the centre of curvature of the mirror.
(iv) When object lies between pole and principle focus of the mirror, the image is virtual, erect and magnified.
Choose the correct statement.
(a) All except (i) (b) All except (ii) (c) All except (iii) (d) All the four (i) to (iv)
Q.02 A Convex mirror used as a rear view mirror on an automobile has a radius of curvature of 3 m. A bus is located at 5 m from the mirror.
Answer Question number 06 to 10 on the basis of your understanding of the above paragraph and the studied concepts:
01 - What is the position of the image of the bus?
(a) 1.15 m (b) 2.30 m (c) 3 m (d) none of the above
02 - What is the focal length of the mirror?
(a) 3 m (b) 1.5 m (c) 6 m (d) 2 m 03 - What is the magnification of the image?
(a) 0.23 (b) – 0.23 (c) 1 (d) infinity
04 - What is the position of the image of the bus when distance of bus from the convex mirror is 1.5 m?
(a) 2 m (b) 3 m (c) 0.75 m (d) 2.36 m
05 - A student performed several experiment using a convex mirror, and listed his observations as follows:
(i) Image of an object is always real and inverted
(ii) The image is always magnified
(iii) When object is at the pole of the mirror, image is virtual, erect and of same size as the object
(iv) For any position beyond the pole of the mirror, the image is virtual, erect and smaller in size than the object
Which are the correct observations?
(a) (i) and (ii) only (b) (i) and (iii) only (c) (iii) and (iv) only (d) all the four
we wish to obtain an erect image of an object using a concave mirror of focal length 20 cm what would you expect if the mirror were convex mirror of same focal length