1
KCET 2020
MCQ (Single Correct Answer)
+1
-0

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

A
10.8 km
B
5.4 km
C
188 m
D
376 m
2
KCET 2020
MCQ (Single Correct Answer)
+1
-0

In Young's double slit experiment, the distance between the slits and the screen is $$1.2 \mathrm{~m}$$ and the distance between the two slits is $$2.4 \mathrm{~mm}$$. If a thin transparent mica sheet of thickness $$1 \mu \mathrm{m}$$ and RI 1.5 is introduced between one of the interfering beams, the shift in the position of central bright fringe is

A
2 mm
B
0.5 mm
C
0.125 mm
D
0.25 mm
3
KCET 2019
MCQ (Single Correct Answer)
+1
-0

If Young's double slit experiment, using monochromatic light of wavelength $$\lambda$$, the intensity of light at a point on the screen where path difference is $$\lambda$$ is $$K$$ units. The intensity of light at a point where path difference is $$\frac{\lambda}{3}$$ is

A
$$K$$
B
$$\frac{K}{4}$$
C
$$4 K$$
D
$$2 K$$
4
KCET 2018
MCQ (Single Correct Answer)
+1
-0
A plane wavefront of wavelength $\lambda$ is incident on a single slit of width $a$. The angular width of principal maximum is
A
$\frac{\lambda}{a}$
B
$\frac{2 \lambda}{a}$
C
$\frac{a}{\lambda}$
D
$\frac{a}{2 \lambda}$
KCET Subjects
EXAM MAP