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Masja [62]
3 years ago
5

When the power in their house unexpectedly went off, Radhika’s mother said that she would check and replace the fuse. What exact

ly would she replace ?
A) a piece of wire B) a bulb. C) an electric meter. D) a switch
Physics
2 answers:
Genrish500 [490]3 years ago
4 0

Answer:

A) a piece of wire

Explanation:

A simple fuse consists of a small piece of wire which has a high resistance and low melting point  so that when a high current flows through it , it melts breaking the electric circuit and saving the electrical appliance from any danger.

AVprozaik [17]3 years ago
3 0
A. A piece of wire














Explaintion














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frez [133]

Answer:

= 9.8°

Explanation:

Width of one slit (a₁ ) = 1 / 1000 mm=0.001 mm = 10⁻⁶ m.

width of one slit in case 2 (a₂ ) = 1/500 =2 x 10⁻⁶ m

angular position of fringe, Sinθ  = n λ /a

n is order of fringe , λ is wave length of light and a  is slit aperture

So Sinθ  ∝ 1 / a

Sin θ₁ /Sin θ₂ = a₂/a₁ ;

Sin20°/sinθ₂ = 2 / 1

sinθ₂ = Sin 20° / 2 = .342/2 = .171

θ₂ = 9.8 °

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