Everyday Science Mcqs

Q.  Which among the following types of lenses are prescribed by doctors for a patient suffering from astigmatism?

a. Cylindrical Lens
b. Concave Lens
c. Spherical Lens
d. Convex Lens


ANSWER: See Answer
 
Astigmatism is a common vision problem caused by an error in the shape of the cornea. With astigmatism, the lens of the eye or the cornea, which is the front surface of the eye, has an irregular curve. This can change the way light passes, or refracts, to your retina. This causes blurry, fuzzy, or distorted vision.

A cylindrical lens is a lens which focuses light into a line instead of a point, as a spherical lens would. The curved face or faces of a cylindrical lens are sections of a cylinder, and focus the image passing through it into a line parallel to the intersection of the surface of the lens and a plane tangent to it.
TasDia Network - Mcqs | Signature | Lyrics
MCQs:  Hydrogen bomb is based on the principle of ________ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Brass gets discoloured in air because of the presence of which of the following gases in air ________ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  A ‘breath test’ used by traffic police to check drunken driving uses ____?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  What is the chemical formula for Sodium carbonate _______ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  A mixture of sand and naphthalene can be separated by ________ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  The M.K.S. system was first introduced by _________ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  What is the chemical formula for Sulfuric acid?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Which of the following is a diverse group of hydrophobic molecules?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  What is the Molecular Formula for Glucose _______ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  What is the third most common gas found in the air we breathe ________ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  What is the molecular formula for Ammonia?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Stethoscope was invented by _______ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Which of the following type of Coal, has maximum carbon content?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Mostly which gases found of the planet Jupiter?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  The temperature at which two conjugate solutions change into one homogeneous solution is called__________?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Pig iron is also called________?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Which of the following is a component of soap?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Soap and detergents remove the dirt from clothes due to__________?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  Turpentine is obtained from___________?
Category: General Knowledge Quiz,   Published by: T-Code Scripts
MCQs:  The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is ________ ?
Category: General Knowledge Quiz,   Published by: T-Code Scripts