Related Questions

Rajat is the brother of Sanjay and Manish is the father of Rajat. Jay is the brother of Shreya and Shreya is the daughter of Sanjay. Who is the uncle of Jay?
A Rajat
B Sanjay
C Manish
D Cannot be determined
Find the power of a convex lens if the image formed is at a distance of 25 cm from the lens when the object is placed on the other side of the lens at 12 cm from the optical centre?
A -4.33 diopters
B 12.33 diopters
C -12.33 diopters
D 4.33 diopters
An ophthalmologist is doctor of -
A bones
B nerves
C eyes
D none
An Ophthalmologist is a doctor of the--.
A bones
B nerves
C eyes
D nose and throat
What type of lens is used to correct vision of a person suffering from Myopia?
A Convex lens
B Concave lens
C Crossed lens
D Cylindrical lens
Which type of lens is required for correcting the vision of a person with myopia?
A Virtual and large size
B Bifocal lens
C Cylindrical lens
D Converging lens
Identify the error : In the fifteenth century , Leonardo da Vinci suggested that defective Vision (i) "can be corrected by" (ii) "placing a" lens (iii) "indirect contact (iv) "with the eye.
A (i)
B (ii)
C (iii)
D (iv)
In hypermetropia
A Ciliary muscles contracts to make clear focus
B A biconvex lens is required for correction
C Light reflex is lost
D Objects at infinity cannot be focused sharply on retina
E Image is formed in front of retina
Hypermetropia কোনটি?
A হ্রস্ব দৃষ্টি
B দীর্ঘ দৃষ্টি
C মাঝারী দৃষ্টি
D উচ্চ রক্ত চাপ
একটি দ্বি-উত্তল অভিসারি লেন্সের প্রত্যেক পৃষ্ঠের বক্রতার ব্যাসার্ধ 30cm এবং গ্লাসের প্রতিসরাঙ্ক 1.50। লেন্সটির ফোকাস দৈর্ঘ্য কত হবে? (The radius of curvatures of both surfaces of a double convex lens are 30cm each and refractive index of glass is 1.50. What will be focal length of the lens?)
A 15 cm
B 30 cm
C 45 cm
D 60 cm

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