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Preeti Dabral 3 years ago
{tex}\begin{aligned} & \mathrm{A}_1=100 \mathrm{~A}_2 \\ & \Rightarrow \frac{\mathrm{A}_1}{\mathrm{~A}_2}=100 \\ & \Rightarrow \frac{\pi \mathrm{r}_1^2}{\pi \mathrm{r}_2^2}=100 \end{aligned}{/tex}
{tex}\begin{aligned} & \Rightarrow \frac{\mathrm{r}_1}{\mathrm{r}_2}=10 \\ & \text { So, } \frac{\mathrm{c}_1}{\mathrm{c}_2}=\frac{2 \pi \mathrm{r}_1}{2 \pi \mathrm{r}_2} \\ & =\frac{\mathrm{r}_1}{\mathrm{r}_2}=\frac{10}{1} \end{aligned}{/tex}
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Sunny Kumar 3 years ago
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Posted by Prati Shaw 3 years ago
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Preeti Dabral 3 years ago
The full form of RBS is the Royal Bank of Scotland. RBS is a major retail and commercial bank in Scotland. It is one of the retail banking subsidiaries of the NatWest Group, along with NatWest in England and Wales and Ulster Bank.
Dwip Patel 3 years ago
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Preeti Dabral 3 years ago
Polymers are high molecular mass (103 - 107u) substances consisting of a very large number of simple repeating structural units on a large scale.
Some examples are : Polythene, nylon 6, 6, bakelite, rubber etc.
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Preeti Dabral 3 years ago
Your ears have two main functions: hearing and balance. Hearing: When sound waves enter your ear canal, your tympanic membrane (eardrum) vibrates. This vibration passes on to three tiny bones (ossicles) in your middle ear. The ossicles amplify and transmit these sound waves to your inner ear.1
Posted by Utkarsh Kumar Yadav 3 years ago
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Preeti Dabral 3 years ago
Let distance between the two towers = AB = x m
and height of the other tower = PA = h m
Given that, height of the tower = QB = 30 m and {tex}\angle{/tex}QAB = 60°, {tex}\angle{/tex}PBA = 30°.
Now, in {tex}\Delta Q A B, \tan 60^{\circ}=\frac{Q B}{A B}=\frac{30}{x}{/tex}
{tex}\Rightarrow \sqrt{3}=\frac{30}{x}{/tex}
{tex}x=\frac{x^{2}}{3}-\frac{x}{3}-\frac{x-3}{3}-x+0.5 \pi{/tex}
and in {tex}\Delta P B A{/tex}
{tex}\tan 30^{\circ}=\frac{P A}{A B}=\frac{h}{x}{/tex}
{tex}\Rightarrow \frac{1}{\sqrt{3}}=\frac{h}{10 \sqrt{3}}{/tex} {tex}[\because x=10 \sqrt{3} \mathrm{m}]{/tex}
{tex}\Rightarrow h = 10 m{/tex}
Hence, the requied distance and height are {tex}10\sqrt3{/tex} and 10m, respectively.
Ankit Class 3 years ago
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Ankit Class 3 years ago
Posted by Rajeshwari Singh 3 years ago
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Preeti Dabral 3 years ago
In hydrated CuSO4, the water molecules surrounding the Central Metal (Cu) act as ligands resulting in $d$-d transition and therefore emitting blue colour in the visible region due to which hydrated CuSO4 appears blue.
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