Shearing stress causes change in
Options
(a) Length (b) Breadth (c) Shape (d) Volume
Correct Answer:
Shape
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
The ferromagnetic substance is
Options
(a) Zn (b) Cu (c) Co (d) Al
Correct Answer:
Co
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting […]
Electromagnets are made of soft iron because soft iron has
Options
(a) Low magnetic susceptibility and low retentivity (b) High magnetic susceptibility and low retentivity (c) High magnetic permeability and high retentivity (d) […]
A layer of colourless oil spreads on water surface. White light is incident on it and due to interference the oil appears coloured. In order to observe this effect the thickness of oil layer must […]
Two waves of same amplitude superpose. The resultant intensity is I₁ when they are coherent and I₂ when they are non-coherent. The ratio of I₁ and I₂ will be
Options
(a) (1:1) (b) […]
Heat is not being exchanged in a body. If its internal energy is increased, then
Options
(a) Its temperature will increase (b) Its temperature will decrease (c) Its temperature will remain constant (d) […]
A bottle full of water in a space ship at 30⁰C is carried on the moon. If the bottle is opened on the surface of the moon, then
Options
(a) Water will start […]
The dimensions of latent heat are
Options
(a) [M⁰L²T⁻²] (b) [M⁰L¹T⁻²] (c) [M²L⁰T⁻²] (d) [M⁰L⁻²T⁻²]
Correct Answer:
[M⁰L²T⁻²]
Explanation:
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The unit of surface tension is
Options
(a) N/cm (b) N/cm² (c) N/cm³ (d) None of these
Correct Answer:
N/cm
Explanation:
No explanation available. Be the first to write the explanation for this […]
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