# CBSE Class 10 Physics Light Reflection and Refraction Assignment Set C

Read and download free pdf of CBSE Class 10 Physics Light Assignment Set C. Get printable school Assignments for Class 10 Physics. Standard 10 students should practise questions and answers given here for Physics in Grade 10 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 10 Physics prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

## Light Class 10 Physics Assignment Pdf

Class 10 Physics students should refer to the following printable assignment in Pdf for Light in standard 10. This test paper with questions and answers for Grade 10 Physics will be very useful for exams and help you to score good marks

### Class 10 Physics Assignment for Light

Assertion and Reason Type MCQs :

Following questions consists of two statements – Assertion (A) and Reason (R). Answer these questions selecting the appropriate option given below:
A. Both assertion and reason are true, and reason is the correct explanation of assertion.
B. Both assertion and reason are true, but reason is not the correct explanation of assertion.
C. Assertion is true but reason is false.
D. Assertion is false and reason is true.

Question. Assertion (A): Large Concave mirrors are used to concentrate sunlight to produce heat in solar cookers.
Reason (R): Concave mirror converges the light rays falling on it to a point.

Question. Assertion (A): The angle of incidence for a ray of light having zero angle of reflection is two.
Reason (R): Refracting surfaces follow Snell’s Law.

Question. Assertion(A) : Concave mirrors are used as make-up mirrors.
Reason (R) : When the face is held within the focus of a concave mirror, then a diminished image of the face is seen in the concave mirror.

Question. Assertion(A): Light travels faster in water than air
Reason (R): Water is denser than Air.

Question. Assertion(A): The mirrors used in search lights are concave spherical.
Reason (R) : In concave spherical mirror the image formed is always virtual.

Question. Assertion (A): Light changes its speed when it passes from one medium to another.
Reason (R): When a ray travels from vacuum to a medium, then refractive index is known as absolute refractive index.

Question. Assertion(A): Virtual images are always erect.
Reason (R) : Virtual images are formed by converging lenses only.

Question. Assertion (A): The emergent ray is parallel to the direction of incident ray.
Reason (R): The extent of bending of the ray of light at the opposite parallel faces (air- glass interface and glass- air interface) of the rectangular glass slab is equal and opposite.

Question. Assertion(A) : The formula connecting u, v and f for a spherical mirror is valid in all situations for all spherical mirrors for all positions of the object.
Reason (R) : Laws of reflection are strictly valid for plane surfaces.

Q1. An object is placed at a distance of 30cm from a concave mirror of focal length 20cm. Where will the image be formed?

Q2. A 2.0-cm-high object is placed perpendicular to the principal axis of a concave mirror. The distance of the object from the mirror is 30cm, and its image is formed 60cm from the mirror, on the same side of the mirror as the object. Find the height of the image formed.

Q3. A 1.2-cm-long pin is placed perpendicular to the principal axis of a convex mirror of focal length 12 cm, at a distance of 8cm from it.

(a) Find the location of the image.

(b) Find the height of the image.

(c) Is the image erect or inverted?

Q4. Sunlight is incident on a concave mirror, parallel to its principal axis. The image is formed at a distance of 12cm from the pole. Find the radius of curvature of the mirror.

Q5. An object is placed at a distance of 20cm from a convex mirror of focal length 25cm.Calculate the position of the image. Discuss its nature.

Q6. Find the position, size and the nature of the image formed by a spherical mirror from the following data. u= -20cm f= -15cm ho= 1.ocm .

Q7. A 2-cm-high object is placed at a distance of 32cm from a concave mirror. The image is real, inverted and 3cm in size. Find the focal length of the mirror and the position of the image.

Q8. A concave mirror forms an inverted image of an object placed at a distance of 12cm from it. If the image is twice as large as the object, where is it formed?

Q9. A concave mirror forms an erect image of an object placed at a distance of 10cm from it. The size of the image is double that of the object. Where is the image formed?

Q10. An object is placed at a distance of 12cmfrom a concave mirror of radius of curvature 16cm.Find the position of the image.

Q11. An object of height 2cm is placed at a distance of 15cm from a concave mirror of focal length 10cm.Draw a scale diagram to locate the image. From the diagram, find the length of the image formed.

Q12. The image of an object placed 16cm from a concave mirror is formed at a distance of 24cm from the mirror. Calculate the possible focal lengths of the concave mirror from this information.

Q13. An object is placed 20cm from a convex mirror. Its image is formed 12cm from the mirror. Find the focal length of the mirror.

Q14.An object is placed at a distance of 12cm from a concave mirror. The image formed is real and four times larger than the object. Calculate the distance of the image from the mirror.

Q15. An object is placed 24cm from a concave mirror. Its image is inverted and doubles the size of the object. Find the focal length of the mirror and the position where the image is formed.

Q16. Where an object should be placed before a concave mirror of focal length 20cm so that a real image is formed at a distance of 60cm from it?

Q17. An object is placed at a distance of 12cm from a convex mirror of radius of curvature 12cm.Find the position of the image.

Q18. If the height of the object in the previous problem is 1.2cm, what will be the height of the image?

Q19. When a concave mirror is placed facing the sun, the sun's rays converge to a point 10cm from the mirror.Now, an erect,2-cm-long pin is placed 15cm away on the principal axis of the mirror. If you want to get the image of the pin on a card, where would you place the card? What would be the nature and height of the image?

Please click the below link to access CBSE Class 10 Physics Light Reflection and Refraction Assignment Set C