Worksheetslight
Total questions: 26
Worksheet time: 12mins
IN WHICH OF THE FOLLOWING MEDIA, VELOCITY OF THE LIGHT WILL BE MAXIMUM?
AIR
GLASS
WATER
VACUUM
THE LAWS OF REFLECTION HOLD GOOD FOR
PLANE MIRROR ONLY
CONCAVE MIRROR ONLY
CONVEX MIRROR ONLY
ALL MIRRORS IRRESPECTIVE OF THEIR SHAPE
IMAGE FORMED BY A MIRROR IS ALWAYS STRAIGHT WHATEVER WILL BE THE DISTANCE, THEN MIRROR IS
ONLY PLANE
ONLY CONCAVE
EITHER CONVEX OR PLANE
ONLY CONVEX
FOCAL LENGTH OF A PLANE MIRROR IS
ZERO
INFINITE
25CM
-25CM
AN OBJECT IS PLACED AT A DISTANCE OF 10CM IN FRONT OF PLANE MIRROR, THEN THE DISTANCE OF IMAGE FROM MIRROR WILL BE
5CM
10CM
20CM
0
THE RELATION BETWEEN FOCAL LENGTH F AND RADIUS OF CURVATURE R FOR A SPHERICAL MIRROR IS
F=2R
F=R/2
F=R/4
F=2/R
FOR A CONVEX MIRROR, PARALLEL RAYS OF LIGHT APPEARS TO DIVERGE FROM A POINT CALLED THE
RADIUS OF CURVATURE
POLE
APERTURE
PRINCIPAL FOCUS
THE RADIUS OF CURVATURE OF CONCAVE MIRROR IS 12 CM.THEN, THE FOCAL LENGTH WILL BE____CM
12
6
-24
-6
THE FOCAL LENGTHOF A SPHERICAL MIRROR IS 10CM. HENCE, THE RADIUS OF CURVATURE WILL BE 5 CM
TRUE
FALSE
WHOSE SIGHT ARE IS THE HIGHEST?
PLANE MIRROR
CONVEX MIRROR
CONCAVE MIRROR
CONCAVE LENS
THE IMAGE OF AN OBJECT IS REAL, INVERTED AND SMALLER IN SIZE, IF IT IS PLACED BEFORE A MIRROR WHICH IS
CONVEX
CONCAVE
PLANE
A FULL LENGTH OF A DISTANT TALL BUILDING CAN DEFINITELY BE SEEN BY USING---MIRROR
CONCAVE
CONVEX
PLANE MIRROR
BOTH CONCAVE AS WELLS AS PLANE MIRROR
NATURE OF A MIRROR HAVING A FOCAL LENGTH +10TH CM IS CONVERGING IN NATURE
TRUE
FALSE
WHEN A OBJECT IS KEPT WITHIN THE FOCUS OF A CONCAVE MIRROR, AN ENLARGED IMAGE IS FORMED BEHIND THE MIRROR.THIS IMAGE IS
REAL
INVERTED
VIRTUAL AND INVERTED
VIRTUAL AND ERECT
AN OBJECT IS PLACED 20CM FROM THE CONCAVE MIRROR OF FOCAL LENGTH 10CM, THEN IMAGE IS FORMED----
BEHIND THE MIRROR
BETWEEN THE FOCUS AND THE MIRROR
AT FOCUS
CENTRE OF CURVATURE OF MIRROR
A CONCAVE MIRROR PRODUCES THREE TIMES MAGNIFIED REAL IMAGE OF AN OBJECT PLACED AT 10CM IN FRONT OF IT.THE IMAGE IS LOCATED AT----CM
30
40
10
90
A 10MM LONG AWL PIN IS PLACED AT VERTICALLY IN FRONT OF A CONCAVE MIRROR. A 5MM LONG IMAGE OF THE AWL PIN IS FORMED AT 30CM IN FRONT OF THE MIRROR.THE FOCAL LENGTH OF THIS MIRROR IS
-30CM
-20CM
-40CM
-60CM
MAGNIFICATION PRODUCED BY A REAR VEIW MIRROR FILTED IN VEHICLES
IS LESS THAN ONE
IS MORE THAN ONE
IS EQUAL TO ONE
A OR B DEPENDING UPON THE POSITION OF OBJECT
IF A RAY OF LIGHT PASSES FROM DENSER TO RARER MEDIUM, THE ANGLE OF REFRACTION WILL BE LESSER THAN THE ANGLE OF INCIDENCE.
TRUE
FALSE
LIGHT RAY IS INCIDENT NORMALLY ON THE BOUNDARY SURFACE OF TWO MEDIA ,THEN THE ANGLE OF REFRACTION WILL BE___-DEGREE
ZERO
45
60
80
YOU ARE GIVEN WATER,MUSTARD OIL, GLYCERINE AND KEROSENE. IN WHICH OF THESE MEDIA, A RAY OF LIGHT INCIDENT OBLIQULY AT SAME ANGLE
KEROSENE
WATER
GLYECERINE
AS THE REFRACTIVE INDICES OF WATER OF WATER, GLASS AND SULPHURIC ACID ARE 1.33,1.53 AND 1.43, HENCE LIGHT TRAVELS SLOWEST IN SULPHURIC ACID.
TRUE
FALSE
ALL YOU LIKING THIS QUIZ
YES
NO
MAZZA AAYA
BAHUT MAZZA AAYA AUR EK KARO
THE RADIUS OF CURVATURE OF A CONCAVE ENS IS 20CM. ITS FOCAL LENGTH WILL BE
-20CM
-10CM
40CM
10CM
NATURE OF IMAGE FORMED BY A CONCAVE LENS IS ALWAYS REAL AND ERECT
TRUE
FALSE
partially true/false
WHICH OF THE FOLLOWING IS NOT CORRECT?
LIGHT IS AN ELECTROMAGNETIC WAVE
LIGHT TRAVELS IN A STRAIGHT LINE
LIGHT IS A TRANVERSE WAVE
LIGHT IS A LONGITUDINAL WAVE.
