A microscope is focused on a point object and then its objective … - Vidyadip

MCQ

$A$ microscope is focused on a point object and then its objective is raised through a height of $2cm$. If a glass slab of refractive index $1.5$ is placed over this point object such that it is focused again, the thickness of the glass slab is......$cm$

✓
$6$
B
$3$
C
$2$
D
$1.5$

✓

Answer

Correct option: A.

$6$

a

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Dimensions of kinetic energy are

Given $A$ and $B$ are input terminals. Logic $1\, = \,> 5\, V$ Logic $0\, =\, < 1\, V$ Which logic gate operation, the above circuit does?

$A$ weightless rod is acted on by upward parallel forces of $2N$ and $4N$ ends $A$ and $B$ respectively. The total length of the rod $AB = 3m$. To keep the rod in equilibrium a force of $6N$ should act in the following manner:

A $1 cm$ long string vibrates with fundamental frequency of $256\, Hz$. If the length is reduced to $\frac{1}{4}cm$ keeping the tension unaltered, the new fundamental frequency will be

Equal force $F ( > mg)$ is applied to string in all the $3$ cases. Starting from rest, the point of application of force moves a distance of $2 m$ down in all cases. In which case the block has maximum kinetic energy?

Which of the following statements is true about the flow of electrons in an electric circuit?

Which of the following formulae is wrong

$10,000 $ small balls, each weighing $1\, gm$, strike one square cm of area per second with a velocity $100 \,m/s$ in a normal direction and rebound with the same velocity. The value of pressure on the surface will be

Two charged spherical conductors of radius $R_{1}$ and $\mathrm{R}_{2}$ are connected by a wire. Then the ratio of surface charge densities of the spheres $\left(\sigma_{1} / \sigma_{2}\right)$ is :

Viscous drag force depends on $...........$