Wavelength of light used in an optical instrument are _1 = 4000 ;… - Vidyadip

MCQ

Wavelength of light used in an optical instrument are ${\lambda _1} = 4000 \;Å$ and ${\lambda _2} = 5000 \;Å$, then ratio of their respective resolving power (corresponding to ${\lambda _1}$ and ${\lambda _2})$ is

A
$16:25$
B
$9:1$
C
$4:5$
✓
$5:4$

✓

Answer

Correct option: D.

$5:4$

d
$R.P.$ $ \propto \frac{1}{\lambda } \Rightarrow \frac{{{{(R.P.)}_1}}}{{{{(R.P.)}_2}}} = \frac{{{\lambda _2}}}{{{\lambda _1}}} = \frac{5}{4}$

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

More "M.C.Q (1 Marks)" from 10. Wave optics→10. Wave optics — all question types→Physics STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

A radioactive element $X$ emits six $\alpha$-particles and four $\beta$-particles leading to ond product ${ }_{82}^{208} Pb$. $X$ is

In the figure, three capacitors each of capacitance $6\,pF$ are connected in series. The total capacitance of the combination will be

For a given surface the Gauss's law is stated as $\oint \mathrm{E} . \mathrm{ds}=0.$ From this we can conclude that

Mutual inductance of two coils placed near is 4.0 H (Henry). If current in the primary coil decreases from 5 A to zero in $10^{-2}$ seconds, then magnitude of induced emf in secondary coil is :

Which of the following is most unstable

A change of $0.8 \,mA$ in the anode current of a triode occurs when the anode potential is changed by $10\, V$. If $\pi$ $ = 8$ for the triode, then what change in the grid voltage would be required to produce a change of $4 \,mA$ in the anode current.....$V$

Biot-Savart, law indicates that the moving electrons (velocity $v$) produce a magnetic field $B$ such that

Two point dipoles of dipole moment ${\vec P_1}$ and ${\vec P_2}$ are at a distance $x$ from each other and ${\vec P_1}$ || ${\vec P_2}$. The force between the dipoles is

Which of the following processes represents a gamma-decay

The shows two NAND gates followed by a NOR gate. The system is equivalent to the following logic gate