282857
Two poles are separated by a distance of \(3.14 \mathrm{~m}\). The resolving power of human eye is \(1 \mathrm{~min}\) of an arc. The maximum distance from which he can identify the two poles distinctly is :
1 \(10.8 \mathrm{~km}\)
2 \(5.4 \mathrm{~km}\)
3 \(188 \mathrm{~m}\)
4 \(376 \mathrm{~m}\)
Explanation:
A: Given, lateral separation (d) \(=3.14 \mathrm{~m}\)
Resolving power \(\left(\theta_{\mathrm{p}}\right)\) in \(1 \mathrm{~min}=\frac{\pi}{180 \times 60} \mathrm{rad}\)
Maximum distance from which poles are distinctly visible is-
\(\begin{aligned}
D=\frac{d}{\theta}=\frac{3.14}{\pi /(180 \times 60)} \mathrm{m} \\
D=10.8 \mathrm{~km}
\end{aligned}\)
Karnataka CET-2020
Ray Optics
282858
A microscope will have maximum resolving power, if to illuminate the specimen, it uses light of
1 yellow colour
2 red colour
3 green colour
4 blue colour
Explanation:
D: Resolving power of microscope \((\mathrm{R}) \propto \frac{1}{\lambda}\)
Since, blue colour has minimum wavelength, so it gives maximum resolving power.
MHT-CET 2020
Ray Optics
282859
When wavelength of light used in optical instrument \(A\) and \(B\) are \(4500 \AA\) and \(6000 \AA\) respectively, the ratio of resolving power of \(A\) to \(B\) will be
282857
Two poles are separated by a distance of \(3.14 \mathrm{~m}\). The resolving power of human eye is \(1 \mathrm{~min}\) of an arc. The maximum distance from which he can identify the two poles distinctly is :
1 \(10.8 \mathrm{~km}\)
2 \(5.4 \mathrm{~km}\)
3 \(188 \mathrm{~m}\)
4 \(376 \mathrm{~m}\)
Explanation:
A: Given, lateral separation (d) \(=3.14 \mathrm{~m}\)
Resolving power \(\left(\theta_{\mathrm{p}}\right)\) in \(1 \mathrm{~min}=\frac{\pi}{180 \times 60} \mathrm{rad}\)
Maximum distance from which poles are distinctly visible is-
\(\begin{aligned}
D=\frac{d}{\theta}=\frac{3.14}{\pi /(180 \times 60)} \mathrm{m} \\
D=10.8 \mathrm{~km}
\end{aligned}\)
Karnataka CET-2020
Ray Optics
282858
A microscope will have maximum resolving power, if to illuminate the specimen, it uses light of
1 yellow colour
2 red colour
3 green colour
4 blue colour
Explanation:
D: Resolving power of microscope \((\mathrm{R}) \propto \frac{1}{\lambda}\)
Since, blue colour has minimum wavelength, so it gives maximum resolving power.
MHT-CET 2020
Ray Optics
282859
When wavelength of light used in optical instrument \(A\) and \(B\) are \(4500 \AA\) and \(6000 \AA\) respectively, the ratio of resolving power of \(A\) to \(B\) will be
282857
Two poles are separated by a distance of \(3.14 \mathrm{~m}\). The resolving power of human eye is \(1 \mathrm{~min}\) of an arc. The maximum distance from which he can identify the two poles distinctly is :
1 \(10.8 \mathrm{~km}\)
2 \(5.4 \mathrm{~km}\)
3 \(188 \mathrm{~m}\)
4 \(376 \mathrm{~m}\)
Explanation:
A: Given, lateral separation (d) \(=3.14 \mathrm{~m}\)
Resolving power \(\left(\theta_{\mathrm{p}}\right)\) in \(1 \mathrm{~min}=\frac{\pi}{180 \times 60} \mathrm{rad}\)
Maximum distance from which poles are distinctly visible is-
\(\begin{aligned}
D=\frac{d}{\theta}=\frac{3.14}{\pi /(180 \times 60)} \mathrm{m} \\
D=10.8 \mathrm{~km}
\end{aligned}\)
Karnataka CET-2020
Ray Optics
282858
A microscope will have maximum resolving power, if to illuminate the specimen, it uses light of
1 yellow colour
2 red colour
3 green colour
4 blue colour
Explanation:
D: Resolving power of microscope \((\mathrm{R}) \propto \frac{1}{\lambda}\)
Since, blue colour has minimum wavelength, so it gives maximum resolving power.
MHT-CET 2020
Ray Optics
282859
When wavelength of light used in optical instrument \(A\) and \(B\) are \(4500 \AA\) and \(6000 \AA\) respectively, the ratio of resolving power of \(A\) to \(B\) will be
282857
Two poles are separated by a distance of \(3.14 \mathrm{~m}\). The resolving power of human eye is \(1 \mathrm{~min}\) of an arc. The maximum distance from which he can identify the two poles distinctly is :
1 \(10.8 \mathrm{~km}\)
2 \(5.4 \mathrm{~km}\)
3 \(188 \mathrm{~m}\)
4 \(376 \mathrm{~m}\)
Explanation:
A: Given, lateral separation (d) \(=3.14 \mathrm{~m}\)
Resolving power \(\left(\theta_{\mathrm{p}}\right)\) in \(1 \mathrm{~min}=\frac{\pi}{180 \times 60} \mathrm{rad}\)
Maximum distance from which poles are distinctly visible is-
\(\begin{aligned}
D=\frac{d}{\theta}=\frac{3.14}{\pi /(180 \times 60)} \mathrm{m} \\
D=10.8 \mathrm{~km}
\end{aligned}\)
Karnataka CET-2020
Ray Optics
282858
A microscope will have maximum resolving power, if to illuminate the specimen, it uses light of
1 yellow colour
2 red colour
3 green colour
4 blue colour
Explanation:
D: Resolving power of microscope \((\mathrm{R}) \propto \frac{1}{\lambda}\)
Since, blue colour has minimum wavelength, so it gives maximum resolving power.
MHT-CET 2020
Ray Optics
282859
When wavelength of light used in optical instrument \(A\) and \(B\) are \(4500 \AA\) and \(6000 \AA\) respectively, the ratio of resolving power of \(A\) to \(B\) will be
