MEDIUM
10th CBSE
IMPORTANT
Earn 100

A convex lens of focal length 20 c m can produce a magnified virtual as well as real image. Is this a correct statement? If yes, where shall the object be placed in each case for obtaining these images?

Important Questions on Light – Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 10 - Light – Reflection and Refraction>Short Answer Type Questions>Q 26
Sudha finds out that the sharp image of the window pane of her science laboratory is formed at a distance of 15 cm from the lens. She now tries to focus the building visible to her outside the window instead of the window pane without disturbing the lens. In which direction will she move the screen to obtain a sharp image of the building? What is the approximate focal length of this lens?
EASY
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 10 - Light – Reflection and Refraction>Short Answer Type Questions>Q 27
How are power and focal length of a lens related? You are provided with two lenses of focal length 20 cm and 40 cm, respectively. Which lens will you use to obtain more convergent light?
MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 10 - Light – Reflection and Refraction>Short Answer Type Questions>Q 28

Under what condition in an arrangement of two plane mirrors, incident ray and reflected ray will always be parallel to each other, whatever may be angle of incidence. Show the same with the help of diagram.

EASY
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 10 - Light – Reflection and Refraction>Short Answer Type Questions>Q 29

Draw a ray diagram showing the path of rays of light when it enters with oblique incidence from air into water;

MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 10 - Light – Reflection and Refraction>Short Answer Type Questions>Q 29

Draw a ray diagram showing the path of rays of light when it enters with oblique incidence from water into air.

EASY
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 10 - Light – Reflection and Refraction>Long Answer Type Questions>Q 30

Draw ray diagram showing the image formation by a concave mirror when an object is placed between pole and focus of the mirror.

MEDIUM
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 10 - Light – Reflection and Refraction>Long Answer Type Questions>Q 30

Draw ray diagram showing the image formation by a concave mirror when an object is placed between focus and centre of curvature of the mirror.

EASY
10th CBSE
IMPORTANT
NCERT EXEMPLAR PROBLEMS-SOLUTIONS SCIENCE Class X>Chapter 10 - Light – Reflection and Refraction>Long Answer Type Questions>Q 30

Draw ray diagram showing the image formation by a concave mirror when an object is placed at centre of curvature of the mirror.