Physics-
General
Easy

Question

For a prism PQR the incident and emergent rays are parallel. The minimum value of refractive index of the prism material is

  1. square root of 3    
  2. 5    
  3. square root of 2    
  4. 2    

The correct answer is: square root of 2

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Figure shows a cross - section of light pipe made of glass fibre of refractive index 1.68. The outer coatingof the pipe is made of a material of refractive index 1.44. What is the range of angles of the incident rays with the axis of the pipe for which total internal reflection inside the pipe takes place?

Figure shows a cross - section of light pipe made of glass fibre of refractive index 1.68. The outer coatingof the pipe is made of a material of refractive index 1.44. What is the range of angles of the incident rays with the axis of the pipe for which total internal reflection inside the pipe takes place?

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Which of the following order of decreasing rate of SN reaction in CF3CO2H is correct
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The correct order of S subscript N to the power of 2 end exponent end subscript / E2 ratio for the % yield of product of the following halide is
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R) C H subscript 3 end subscript minus C H subscript 2 end subscript minus I
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The correct order of S subscript N to the power of 2 end exponent end subscript / E2 ratio for the % yield of product of the following halide is
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R) C H subscript 3 end subscript minus C H subscript 2 end subscript minus I
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Select the formula representing the major product of the following reaction

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The most probable product in the following reaction is :

The most probable product in the following reaction is :

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Arrange the following in decreasing order of stability of their transition state during elimination by strong base
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In the following reaction the most probable product will be :

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What will be the major product of the following reaction

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The increasing order of reactivity of the following isomeric halides with AgNO3(H2O + alcohol) is :
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The increasing order of reactivity of the following isomeric halides with AgNO3(H2O + alcohol) is :
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II)
III)
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