General

Easy

Question

During normal incidence on a glass slab, the angle of incidence = ____.

The angle of refraction
The angle of emergence
Both a and b
None of the above

hint Hint:

All angles are 0° from normal.

The correct answer is: Both a and b

When a ray of light falls on a glass slab normally, the angle between normal and incident ray is zero.

Therefore, angle of refraction and emergence will also be zero.

So, the correct option is c.

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During normal incidence on a glass slab, the angle of incidence = ____.

The angle of refractionThe angle of emergenceBoth a and bNone of the above

All angles are 0° from normal.

The correct answer is: Both a and b

When a ray of light falls on a glass slab normally, the angle between normal and incident ray is zero. Therefore, angle of refraction and emergence will also be zero. So, the correct option is c.

Related Questions to study

During refraction through a glass slab, when the medium at the both sides of the glass slab is the same then, the incident ray is parallel to ____.

During refraction through a glass slab, when the medium at the both sides of the glass slab is the same then, the incident ray is parallel to ____.

Butter is

Butter is

To double the volume of a given mass of an ideal gas at keeping the pressure constant, one must raise the temperature in degree centigrade to

To double the volume of a given mass of an ideal gas at keeping the pressure constant, one must raise the temperature in degree centigrade to

A body is orbiting very close to the earth’s surface with kinetic energy KE. The energy required to completely escape from it is

A body is orbiting very close to the earth’s surface with kinetic energy KE. The energy required to completely escape from it is

NaCl type crystal can be converted into CsCl type crystal by applying:

NaCl type crystal can be converted into CsCl type crystal by applying:

The labelled part A is called___________.

The labelled part A is called___________.

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The function is period with period

The value of k, for which is an identity, is

The value of k, for which is an identity, is

If then

If then

Which one of the following is not true

Which one of the following is not true

If then equals

If then equals

If , then

If , then

The order of is

The order of is

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If , then

Which of the following relations is incorrect

Which of the following relations is incorrect

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The angle of refraction
The angle of emergence
Both a and b
None of the above

When a ray of light falls on a glass slab normally, the angle between normal and incident ray is zero.

Therefore, angle of refraction and emergence will also be zero.

So, the correct option is c.

To double the volume of a given mass of an ideal gas at $27 ℃$ keeping the pressure constant, one must raise the temperature in degree centigrade to

To double the volume of a given mass of an ideal gas at $27 ℃$ keeping the pressure constant, one must raise the temperature in degree centigrade to

The value of k, for which $left parenthesis cos invisible function application x plus sin invisible function application x right parenthesis to the power of 2 end exponent plus k sin invisible function application x cos invisible function application x minus 1 equals 0$ is an identity, is

The value of k, for which $left parenthesis cos invisible function application x plus sin invisible function application x right parenthesis to the power of 2 end exponent plus k sin invisible function application x cos invisible function application x minus 1 equals 0$ is an identity, is

If $A equals open square brackets table row 0 1 row 1 0 end table close square brackets comma B equals open square brackets table row 0 cell negative i end cell row i 0 end table close square brackets$ then $left parenthesis A plus B right parenthesis to the power of 2 end exponent$ equals

If $A equals open square brackets table row 0 1 row 1 0 end table close square brackets comma B equals open square brackets table row 0 cell negative i end cell row i 0 end table close square brackets$ then $left parenthesis A plus B right parenthesis to the power of 2 end exponent$ equals

If $A equals open square brackets table row 3 1 row cell negative 1 end cell 2 end table close square brackets$ , then $A to the power of 2 end exponent equals$

If $A equals open square brackets table row 3 1 row cell negative 1 end cell 2 end table close square brackets$ , then $A to the power of 2 end exponent equals$

The order of $left square bracket x y z right square bracket open square brackets table row a g g row f b f row g f c end table close square brackets open square brackets table row cell x end cell row cell y end cell row cell z end cell end table close square brackets$ is

The order of $left square bracket x y z right square bracket open square brackets table row a g g row f b f row g f c end table close square brackets open square brackets table row cell x end cell row cell y end cell row cell z end cell end table close square brackets$ is

If $A equals d i g left parenthesis 2 comma negative 1 , 3 right parenthesis comma B equals d i g left parenthesis negative 1 , 3 comma 2 right parenthesis$ , then $A to the power of 2 end exponent B equals$

If $A equals d i g left parenthesis 2 comma negative 1 , 3 right parenthesis comma B equals d i g left parenthesis negative 1 , 3 comma 2 right parenthesis$ , then $A to the power of 2 end exponent B equals$