MCQ
A student studying the similarities and differences between a camera and the human eye makes the following observations:

$I$. Both the eye and the camera have convex lenses.

$II$. In order to focus, the eye lens expands or contracts while the camera lens moves forward or backward.

$III$. The camera lens produces upside down real images while the eye lens produces only upright real images.

$IV$. A screen in camera is equivalent to the retina in the eyes.

$V$. A camera adjusts the amount of light entering in it by adjusting the aperture of the lens. In the eye, the cornea controls the amount of light. Which of the above statements are correct?

  • A
    Statements $I, II$ and $IV$ are correct
  • B
    Statements $I, III$ and $V$ are correct
  • Statements $I, II, IV$ and $V$ are correct
  • D
    All statements are correct

Answer

Correct option: C.
Statements $I, II, IV$ and $V$ are correct
c
(c)

Image produced on retina are real and inverted. We are able to perceive them as erect because of processing of our brain.

Only statement $III$ is incorrect all other are correct.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

For the network shown in the figure the value of the current i is

If a charged particle at rest experiences no electromagnetic force:
In a PNP transistor working as a common-base amplifier, current gain is 0.96 and emitter current is 7.2 mA. The base current is
The length of Milky way is
Fusion reaction takes place at high temperature because
An infinite sequence of resistance is shown in the figure. The resultant resistance between $A$ and $B$ will be, when ${R_1} = 1\,ohm$ and ${R_2} = 2\,ohm$ ............. $\Omega$
A straight wire of length ($\pi^2$) metre is carrying a current of 2A and the magnetic field due to it is measured at a point distant 1 cm from it. If the wire is to be bent into a circle and is to carry the same current as before, the ratio of the magnetic field at its centre to that obtained in the first case would be
The energy of hydrogen atom in its ground state is $-13.6 \,eV$, the energy of the level corresponding to $n=7$ is ...... $eV$
A steady current $i$ flows in a small square loop of wire of side $L$ in a horizontal plane. The loop is now folded about its middle such that half of it lies in a vertical plane. Let $\overrightarrow {{\mu _1}} $ and $\overrightarrow {{\mu _2}} $ respectively denote the magnetic moments due to the current loop before and after folding. Then
Excitation energy of a hydrogen like ion in its first excitation state is $40.8  \,eV$. Energy needed to remove the electron from the ion in ground state is ........$eV$