Question

broad and 2 cm high?
(b) 65000 cm
(d) 5600 cm
3
(c) 56000 cm
length, breadth and height are
respectively 12 cm, 10 cm and 8 cm.
(b) 860 cm
( 980 cm
(d) 880 cm
(a) 960 cm
3
3
6. What can be possible volume of any box
to carry 100 books 20 cm long, 14 cm
(a) 56500 cm
7. Find the volume of the cuboid whose​

Answer 1

Answer:

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Step-by-step explanation:

Given : D=120 cm=1.2 m d=2 mm=2×10

−3

m

Wavelength λ=6500 A

o

=6.5×10

−7

m

Distance of third bright fringe from central maxima y

3

=

d

nλD

where n=3

∴ y

3

=

2×10

−3

3×6.5×10

−7

×1.2

=11.7×10

−4

m=0.117 cm