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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा १०

Assertion and reasoning type Assertion: If the refractive index of the medium is high (denser medium) the velocity of the light in that medium will be small - Science

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प्रश्न

Assertion and reasoning type

  1. Assertion: If the refractive index of the medium is high (denser medium) the velocity of the light in that medium will be small
  2. Reason: Refractive index of the medium is inversely proportional to the velocity of the light

विकल्प

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • Assertion is true but reason is false.

  • Assertion is false but reason is true.

MCQ
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उत्तर

If both assertion and reason are true and reason is the correct explanation of assertion.

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  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Optics - Evaluation [पृष्ठ ३०]

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सामाचीर कलवी Science [English] Class 10 SSLC TN Board
अध्याय 2 Optics
Evaluation | Q V. 1. | पृष्ठ ३०

संबंधित प्रश्न

The letter F is placed in front of a plane mirror: 

 How would its image look like when seen in a plane mirror?


Explain how to read the following message which was found on some blotting paper:


Light enters from air to glass having refractive index 1.50. What is the speed of light in the glass? The speed of light in vacuum is 3 × 108 m s−1.


List in proper sequence the steps of the experiment for determining the approximate focal length of a given concave mirror by obtaining the image of a distant object.


The incident rays and refracting rays are on opposite sides of the normal.


State whether true or false. If false, correct the statement.

The angle of deviation depends on the refractive index of the glass.


Noor, a young student, was trying to demonstrate some properties of light in her Science project work. She kept ‘X’ inside the box (as shown in the figure) and with the help of a laser pointer made light rays pass through the holes on one side of the box. She had a small butter-paper screen to see the spots of light being cast as they emerged.

Her friend noted the following observations from this demonstration:

  1. Glass is optically rarer than air.
  2. Air and glass allow light to pass through them with the same velocity.
  3. Air is optically rarer than glass.
  4. Speed of light through a denser medium is faster than that of a rarer medium.
  5. The ratio: sin of angle of incidence in the first medium to the ratio of sin of angle of refraction in the second medium, gives the refractive index of the second material with respect to the first one.

Which one of the combinations of the above statements given below is correct.


A ray of light traveling in medium 1 strikes and travels into another transparent medium 2. If the speed of light is greater in medium 1, the ray will ______.


Assertion: The air bubble shines in water.
Reason: Air bubble shines due to the refraction of light.


In refraction of light through a glass slab, the directions of the incident ray and the refracted ray are ______.


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