हिंदी

Define light year.

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प्रश्न

Define the light year.
एक पंक्ति में उत्तर
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उत्तर

A light year is defined as the distance travelled by light in a vacuum in one year.
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Measurements
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अध्याय 1: Measurement - Exercise 5 [पृष्ठ ४७]

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फ्रैंक Physics [English] Class 9 ICSE
अध्याय 1 Measurement
Exercise 5 | Q 7 | पृष्ठ ४७

संबंधित प्रश्न

Name three units of length which are bigger than a meter. How are they related to the meter?


Express light year in terms of meter.


The height of a tree can be measured by


5 km = ______ m.


What are the two parts present in a measurement?


The uncertainty in measurement is called as _______.


The gravity accelerates an object, and the distance fallen is proportional to ______.


Questions based on Higher Order Thinking Skills:

There are three spheres A, B, C as shown below.

Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. The density of A is double that of C.

Now answer the following questions.

  1. Find the ratio of masses of spheres A and B.
  2. Find the ratio of volumes of spheres A and B.
  3. Find the ratio of masses of spheres A and C.

Questions based on Higher Order Thinking Skills:

There are three spheres A, B, C as shown below.

Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.

Now answer the following questions.

  1. Find the ratio of masses of spheres A and B.
  2. Find the ratio of volumes of spheres A and B.
  3. Find the ratio of masses of spheres A and C.

Questions based on Higher Order Thinking Skills:

There are three spheres A, B, C as shown below.

Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.

 

Now answer the following questions.

  1. Find the ratio of masses of spheres A and B.
  2. Find the ratio of volumes of spheres A and B.
  3. Find the ratio of masses of spheres A and C.

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