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Mcq

Revise the chapter& prepare for test

Mcq

Revision only

MCQ revision

MCQ

SECTION:A (5×1=5) Choose the correct answer for each of the following. 1:The path of the light is (a) always a straight line (b) a curved line (c) a zig-zag line (d) depends on the medium 2:Which one shows lateral inversion? (a) Plane mirror (b) Convex mirror (c) Concave mirror (d) All of these 3:Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively (a) plane mirror and concave mirror (b) concave mirror and convex mirror (c) plane mirror and convex mirror (d) convex mirror and plane mirror 4:Which of the following can be used to form a real image? (a) Concave mirror only (b) Plane mirror only (c) Convex mirror only (d) Both concave and convex mirrors 5: Ifan object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be (a) 2 m (b) 1 m (c) 0.5 m (d) 0.25 m Section B (5×1=5) Fill in the blanks 1:The property by which light in the straight line is termed as_______________________ 2:The splitting of white light into its seven constituent colours is called________________ 3:A ____________________ lens always forms an erect, virtual and diminished image. 4:An image formed on a screen is called a _______ 5:The lenses which feel thicker in the middle than at the edges are _________ Section C (2.5×1=2.5) Write short notes on any one. 1:spherical mirrors 2:regular reflection 3:kind of image formed by a concave mirror. Section D (5×1=5) Match the items in column A with column B A. (a) Plane Mirror (b) A convex mirror (c) A convex lens (d) A concave mirror (e) A concave lens B. (i) Used as a magnifying glass. (ii) can form image of objects spread over a large area. (iii) used by dentists to see enlarged image of teeth. (iv) the image formed is always inverted and magnified. (v) the image is erect and of the same size as the object. (vi) The image is erect and smaller.

Mcq

Attempt All the questions

Attempt all the questions Q1,2,&3 :5marks each and Q4is of10

31 MCQ. Attempt all the questions.

Attempt all the question

Mcq

Mcq

MCQ revision of PT-3

MCQ

MCQ, INTEGER, MORE THAN ANSWER TYPE QUESTION

Class-8 Science Revision test 3 Date:21Jan2022. Time:35 min. There are 4 questions attempt all the questions in good handwriting Q1:Choose the correct answer for each of the following.(5×1=5) 1.Which one of the following statements is correct regarding rods and cones in the human eye? (a) Cones are sensitive to dim light (b) Cones are sensitive to bright light (c) Rods are sensitive to bright light (d) Rods can sense colour 2.The defect due to which a person is not able to see the distant objects clearly: (a) Myopia (b) Hypermetropia (c) Cornea (d) Cataract 3.Maximum part of light is reflected by (a) opaque object (b) translucent object (c) transparent object (d) all of these 4.The back side of a plane mirror contains (a) gold coating (b) silver coating (c) aluminium coating (d) copper coating 5.There are ________ laws of reflection. (a) one (b) two (c) three (d) four Q2: Fill in the blanks. (5×1=5) 1.When two mirrors are kept parallel to each other the number of images is _____________. 2.Kaleidoscope works on the principle of __________. 3.The coloured part of eye is _________. 4.________ can be corrected by using a concave lens of suitable focal length. 5.The English Braille system uses _________ dots. Q3:Write short notes on any one. (3×1=3) 1.characteristics of the image formed by a plane mirror 2.near point and far point of eye. 3.diverging lens Q4:Match the items in column A with column B. ( 5×1=5) A. B. (a)white light (i) convex mirror (b) refraction (ii)concave mirror (c) virtual images (iii) refraction (d) real images. (iv) spectrum (e) prism (v)ray of light from. glass to air

MCQ

Mcq

Mcq

Mcq

SECTION:A (5×1=5) Choose the correct answer for each of the following. 1:The path of the light is (a) always a straight line (b) a curved line (c) a zig-zag line (d) depends on the medium 2:Which one shows lateral inversion? (a) Plane mirror (b) Convex mirror (c) Concave mirror (d) All of these 3:Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively (a) plane mirror and concave mirror (b) concave mirror and convex mirror (c) plane mirror and convex mirror (d) convex mirror and plane mirror 4:Which of the following can be used to form a real image? (a) Concave mirror only (b) Plane mirror only (c) Convex mirror only (d) Both concave and convex mirrors 5: Ifan object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be (a) 2 m (b) 1 m (c) 0.5 m (d) 0.25 m Section B (5×1=5) Fill in the blanks 1:The property by which light in the straight line is termed as_______________________ 2:The splitting of white light into its seven constituent colours is called________________ 3:A ____________________ lens always forms an erect, virtual and diminished image. 4:An image formed on a screen is called a _______ 5:The lenses which feel thicker in the middle than at the edges are _________ Section C (3×1=3) Write short notes on any one. 1:spherical mirrors 2:regular reflection 3:kind of image formed by a concave mirror. Section D (5×1=5) Match the items in column A with column B A. (a) Plane Mirror (b) A convex mirror (c) A convex lens (d) A concave mirror (e) A concave lens B. (i) Used as a magnifying glass. (ii) can form image of objects spread over a large area. (iii) used by dentists to see enlarged image of teeth. (iv) the image formed is always inverted and magnified. (v) the image is erect and of the same size as the object. (vi) The image is erect and smaller.

Class-8 Science Revision test 3 Date:21Jan2022. Time:35 min. There are 4 questions attempt all the questions in good handwriting Q1:Choose the correct answer for each of the following.(5×1=5) 1.Which one of the following statements is correct regarding rods and cones in the human eye? (a) Cones are sensitive to dim light (b) Cones are sensitive to bright light (c) Rods are sensitive to bright light (d) Rods can sense colour 2.The defect due to which a person is not able to see the distant objects clearly: (a) Myopia (b) Hypermetropia (c) Cornea (d) Cataract 3.Maximum part of light is reflected by (a) opaque object (b) translucent object (c) transparent object (d) all of these 4.The back side of a plane mirror contains (a) gold coating (b) silver coating (c) aluminium coating (d) copper coating 5.There are ________ laws of reflection. (a) one (b) two (c) three (d) four Q2: Fill in the blanks. (5×1=5) 1.When two mirrors are kept parallel to each other the number of images is _____________. 2.Kaleidoscope works on the principle of __________. 3.The coloured part of eye is _________. 4.________ can be corrected by using a concave lens of suitable focal length. 5.The English Braille system uses _________ dots. Q3:Write short notes on any one. (3×1=3) 1.characteristics of the image formed by a plane mirror 2.near point and far point of eye. 3.diverging lens Q4:Match the items in column A with column B. ( 5×1=5) A. B. (a)white light (i) convex mirror (b) refraction (ii)concave mirror (c) virtual images (iii) refraction (d) real images. (iv) spectrum (e) prism (v)ray of light from. glass to air

MCQ