EASY
Earn 100

Which one of the following does not contribute to pollution ?

50% studentsanswered this correctly

Important Questions on Sets, Relations and Functions

EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations

Which one of the following is not a property of solution?

EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
Which of the following is employed to clearly view objects which cannot be seen directly due to obstruction? 
MEDIUM
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
The phenomenon of deviation of light rays from their original path, when they pass from one medium to another, is called _____.
MEDIUM
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
The Tyndall Effect is due to
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
If an object is at 10 cm, away from the concave for which radius of curvature is 5 cm. Find out the value of magnification of the object:
MEDIUM
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
The phenomenon of physics when, in polar regions like Alaska and Northern Canada, a splendid
display of colours is seen in the sky is called a/an:
MEDIUM
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
The power of a lens is –2.0 D. Here 'D' stands for:
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
Twinkling of stars is mainly due to which phenomena?
MEDIUM
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
Dentist use Concave mirror because it gives _____ and _____ Image.
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
If the reflecting surface of a spherical minor is convex, then it is a _____ mirror.
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
The sky appears blue due to _____.
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
Where should an object be placed in front of a convex lens to obtain a real image of the same size of the object?
MEDIUM
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
The spectrum of light was first explained by _____
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
The power of a lens is measured in _____.
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
What will be the size of image formed by a concave mirror when an object placed between Pole and Focus?
MEDIUM
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
In which part of the human body will you find the 'superior rectus'?
MEDIUM
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
The blackboard seems black because it _____.
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
Which mirror has a very wide field of view?
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations
After a shower of rain, a rainbow is seen:
EASY
Mathematics>Algebra>Sets, Relations and Functions>Sets and Relations

If the focal length of a mirror is +15, then it is______: