Unlike other kinds of liquids, volatile liquids
1 answer:
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Answer:
C. 2.0 cm
Explanation:
The magnetic field around the wire at point M is given by Biot-Savart Law:
where,
B = Magnetic field = 50 μT = 5 x 10⁻⁵ T
I = current = 5 A
μ₀ = permeability of free space = 4π x 10⁻⁷ N/A²
R = distance of point M from wire = ?
Therefore,
R = 0.02 m = 2 cm
Hence, the correct option is:
<u>C. 2.0 cm</u>
Answer:
d = 49.5 m
hence we can say it is conceivable that he can distinguish sports stadiums on earth's surface but in Private houses? Cars? it can not becayuse they are are very small
Explanation:
Given data
altitude = 150 km
diameter = 2.0 mm
wavelength = 550 nm
to find out
is it conceivable that he can distinguish sports stadiums
solution
we will apply here formula that is
∅ = 1.2 λ / D
put here λ = 550 × m and D = 2 ×
m
∅ = (1.2 ) 550 × / 2 ×
∅ = 3.30 × rad
so
d = 150 × × 3.30 ×
d = 49.5 m
hence we can say it is conceivable that he can distinguish sports stadiums on earth's surface but in Private houses? Cars? it can not becayuse they are are very small