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Physics-

General

Easy

Question

A beam of light AO is incident on a glass slab $left parenthesis mu equals 1.54 right parenthesis$ in a direction as shown in figure. The reflected ray OB is passed through a Nicol prism on viewing through a Nicole prism, we find on rotating the prism that

The intensity is reduced down to zero and remains zero
The intensity reduces down some what and rises again
There is no change in intensity
The intensity gradually reduces to zero and then again increases

The correct answer is: The intensity gradually reduces to zero and then again increases

Related Questions to study

$text (B) end text not stretchy ⟵ with straight H subscript 2 plus Ni on top PhNO subscript 2 not stretchy ⟶ with LAH on top left parenthesis straight A right parenthesis$ The products (A) and (B) are:

$text (B) end text not stretchy ⟵ with straight H subscript 2 plus Ni on top PhNO subscript 2 not stretchy ⟶ with LAH on top left parenthesis straight A right parenthesis$ The products (A) and (B) are:

chemistry-General

The products (B) and (C) are:

The products (B) and (C) are:

chemistry-General

If Z = aX + bY and r is the correlation coefficient between X and Y, then $sigma subscript z superscript 2$ is equal to -

If Z = aX + bY and r is the correlation coefficient between X and Y, then $sigma subscript z superscript 2$ is equal to -

parallel

The imaginary part of $fraction numerator e to the power of i theta end exponent over denominator 1 minus k e to the power of i phi end exponent end fraction$ is-

The imaginary part of $fraction numerator e to the power of i theta end exponent over denominator 1 minus k e to the power of i phi end exponent end fraction$ is-

If the lines $x to the power of 2 end exponent plus 2 x y minus 35 y to the power of 2 end exponent minus 4 x plus 44 y minus 12 equals 0$ and $5 x plus lambda y minus 8 equals 0$ are concurrent, then the value of l is

If the lines $x to the power of 2 end exponent plus 2 x y minus 35 y to the power of 2 end exponent minus 4 x plus 44 y minus 12 equals 0$ and $5 x plus lambda y minus 8 equals 0$ are concurrent, then the value of l is

A: The product of the perpendiculars from $open parentheses 2 comma negative 1 close parentheses text to the lines end text 2 x to the power of 2 end exponent plus 6 x y plus y to the power of 2 end exponent equals 0$
B: The product of perpendiculars from (1,1) to the pair of lines $3 x to the power of 2 end exponent plus 10 x y plus 3 y to the power of 2 end exponent minus 28 x minus 28 y plus 49 equals 0$
C: The product of perpendiculars from (0,0) to pair of lines $2 x to the power of 2 end exponent minus 13 x y minus 7 y to the power of 2 end exponent plus x plus 23 y minus 6 equals 0$
D: The square of the distance from (0,0) to the point of intersection of $x to the power of 2 end exponent minus y to the power of 2 end exponent minus x minus 3 y minus 2 equals 0$ Arrange A,B,C,D in ascending order

A: The product of the perpendiculars from $open parentheses 2 comma negative 1 close parentheses text to the lines end text 2 x to the power of 2 end exponent plus 6 x y plus y to the power of 2 end exponent equals 0$
B: The product of perpendiculars from (1,1) to the pair of lines $3 x to the power of 2 end exponent plus 10 x y plus 3 y to the power of 2 end exponent minus 28 x minus 28 y plus 49 equals 0$
C: The product of perpendiculars from (0,0) to pair of lines $2 x to the power of 2 end exponent minus 13 x y minus 7 y to the power of 2 end exponent plus x plus 23 y minus 6 equals 0$
D: The square of the distance from (0,0) to the point of intersection of $x to the power of 2 end exponent minus y to the power of 2 end exponent minus x minus 3 y minus 2 equals 0$ Arrange A,B,C,D in ascending order

parallel

If the equation $a x to the power of 2 end exponent plus 2 h x y plus b y to the power of 2 end exponent plus 2 g x plus 2 f y plus c equals 0$ represents a pair of straight lines, then the square of the distance of their point of intersection from the origin is

If the equation $a x to the power of 2 end exponent plus 2 h x y plus b y to the power of 2 end exponent plus 2 g x plus 2 f y plus c equals 0$ represents a pair of straight lines, then the square of the distance of their point of intersection from the origin is

$text If end text 3 x to the power of 2 end exponent minus 11 x y plus 10 y to the power of 2 end exponent minus 7 x plus 13 y plus k equals 0$ denotes a pair of straight lines, then the point of intersection of the lines is

$text If end text 3 x to the power of 2 end exponent minus 11 x y plus 10 y to the power of 2 end exponent minus 7 x plus 13 y plus k equals 0$ denotes a pair of straight lines, then the point of intersection of the lines is

The point of intersection of the straight lines represented by $6 x to the power of 2 end exponent plus x y minus 40 y to the power of 2 end exponent minus 35 x minus 83 y plus 11 equals 0$

The point of intersection of the straight lines represented by $6 x to the power of 2 end exponent plus x y minus 40 y to the power of 2 end exponent minus 35 x minus 83 y plus 11 equals 0$

parallel

The product of the perpendicular distances from the point (-2, 3) to the lines $x to the power of 2 end exponent minus y to the power of 2 end exponent plus 2 x plus 1 equals 0 text is end text$

The product of the perpendicular distances from the point (-2, 3) to the lines $x to the power of 2 end exponent minus y to the power of 2 end exponent plus 2 x plus 1 equals 0 text is end text$

The distance between the two lines represented by $8 x to the power of 2 end exponent minus 24 x y plus 18 y to the power of 2 end exponent minus 6 x plus 9 y minus 5 equals 0 text is end text$

The distance between the two lines represented by $8 x to the power of 2 end exponent minus 24 x y plus 18 y to the power of 2 end exponent minus 6 x plus 9 y minus 5 equals 0 text is end text$

The distance between the parallel lines $x to the power of 2 end exponent plus 2 square root of 2 x y plus 2 y to the power of 2 end exponent plus 4 x plus 4 square root of 2 y plus 1 equals 0 text is end text$

The distance between the parallel lines $x to the power of 2 end exponent plus 2 square root of 2 x y plus 2 y to the power of 2 end exponent plus 4 x plus 4 square root of 2 y plus 1 equals 0 text is end text$

parallel

The distance between the parallel lines $9 x to the power of 2 end exponent minus 6 x y plus y to the power of 2 end exponent plus 18 x minus 6 y plus 8 equals 0 text is end text$

The distance between the parallel lines $9 x to the power of 2 end exponent minus 6 x y plus y to the power of 2 end exponent plus 18 x minus 6 y plus 8 equals 0 text is end text$

$text If end text a x to the power of 2 end exponent plus 2 h x y plus b y to the power of 2 end exponent plus 2 g x plus 2 f y plus c equals 0$ represents a pair of parallel lines then $square root of fraction numerator g to the power of 2 end exponent minus a c over denominator f to the power of 2 end exponent minus b c end fraction end root equals$

$text If end text a x to the power of 2 end exponent plus 2 h x y plus b y to the power of 2 end exponent plus 2 g x plus 2 f y plus c equals 0$ represents a pair of parallel lines then $square root of fraction numerator g to the power of 2 end exponent minus a c over denominator f to the power of 2 end exponent minus b c end fraction end root equals$

The equation of the pair of lines through the point (a, b) and parallel to the coordinate axes is

The equation of the pair of lines through the point (a, b) and parallel to the coordinate axes is

parallel

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