# hots questions on light class 8

Boojho planned an activity to observe an object A through pipes as shown in Fig. Find the position, nature and size of the final image for reflections first at concave mirror and then at convex mirror. Here you can get Class 8 Important Questions Science based on NCERT Text book for Class VIII. Fig. At what distance from the mirror should a screen be placed in order to receive a sharp image. | | 3 sec, OTP has been sent to your mobile number and is valid for one hour. Two plane mirrors are placed parallel to each other. Lalit Sardana Sir Franchise A plane mirror is moved away from a stationary object with a speed of 20 cm/s. (ii) We have a mirror. | Also label the angle of incidence and angle of reflection on it. Question 2. If the position of the object is changed, the nature and the 3 magnification remains unchanged. Identify the type of the mirror. Why Studyadda? Here we have provided NCERT Exemplar Problems Solutions along with NCERT Exemplar Problems Class 8. Question 1: What is light? What is the distance between the first image at ${{M}_{1}}$and the second image formed at${{M}_{2}}$? Privacy Policy | Sample Papers Q2. | If a light ray is incident on the first mirror parallel to the second mirror and reflected from the second parallel to the first mirror, then find the value of $\theta$. When an object is placed at a distance of 20 cm from the lens, it is found that the image coincided with the object. Question 2: What is reflection of light? | CBSE Important Questions for Class 8 Science, NCERT Important Questions for Class 8 Science, CBSE 12 Class Compartment Result 2020 (Out) – Check at cbseresults.nic.in, CBSE Class 10 Result 2020 (Out) – Check CBSE 10th Result at cbseresults.nic.in, cbse.nic.in, IARCS Olympiads: Indian Association for Research in Computing Science, Breaking: CBSE Exam to be conducted only for Main Subjects, Class 8 Important Questions for Science - Stars and Solar System, Part of the eye which controls the light entering is called. The image of an object placed in front of this mirror is virtual. 8th Class Science Light Question Bank done Light HOTS Subjective Problems Total Question - 15 question_answer1) An object is placed at a distance of 20 cm in front of a plane mirror. This phenomenon is called reflection of light. Is the spherical mirror concave or convex? Ans. Media If the mirror moves towards the object by a distance of 20 cm, then find the displacement of the image. Ans. A ray of light parallel to Mirror 1 strikes the Mirror 2. Questions Bank A convex and a concave mirror of radii 10 cm each are placed facing each other and 15 cm apart. Give an example. An object is placed mid way between them. FAQ | A ray is incident on one mirror at an angle $\theta$. An object is placed between the mirrors at a distance of 4 cm from one of them, say${{M}_{1}}$. Ans. The pencil of light coming out of the hole falls on a mirror. Q1. question_answer7) Two plane mirrors are inclined to each other at an angle of ${{70}^{o}}$. The hole is illuminated by a torch as shown in Fig. https://www.studyadda.com Two mirrors are inclined at a certain angle $\theta$. question_answer9) A needle 1.5 cm is placed at a distance of 20 cm from a concave mirror of focal length 15 cm. Study Packages Dispersion of light. question_answer12) Show that the length of a plane mirror in which a person can see his fall image is half the height of the person.