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The sun's angular diameter is measured t...

The sun's angular diameter is measured to be 1920''. The distance of the sun from the earth is `1.496xx10^(11)m.` What is the diameter of the sun?

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To find the diameter of the sun given its angular diameter and distance from the Earth, we can follow these steps: ### Step 1: Understand the relationship between angular diameter, diameter, and distance The angular diameter (θ) in radians is related to the diameter (D) of an object and its distance (d) from the observer by the formula: \[ \theta = \frac{D}{d} \] From this, we can rearrange the formula to find the diameter: ...
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NCERT ENGLISH-UNITS AND MEASUREMENT-EXERCISE
  1. The sun's angular diameter is measured to be 1920''. The distance of t...

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  2. Fill in the blanks (a) The volume of a cube of side 1 cm isk equal t...

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  3. Fill in the blanks by suitable conversion of units : (a) 1kg m^2 s^(...

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  4. A calorie is a unit of heat or energy and it equals about 4.2 J, where...

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  5. Explain this statement clearly : "To call a dimensional quantity 'la...

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  6. A new unit of length is chosen such that the speed of light in vacuum ...

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  7. Which of the following is the most precise device for measuring length...

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  8. A student measures the thickness of a human hair by looking at it thro...

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  9. Answer the following : (a) You are given a tread and a metre scale. ...

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  10. The photograph of a house occupies an area of 1.7cm^2 on a 35 slide. T...

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  11. State the number of significant figures in the following : (a) 0.007m^...

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  12. The length , breadth , and thickness of a metal sheet are 4.234 m , 1....

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  13. The mass of a box measured by a grocer's balance is 2.300kg. Two gold ...

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  14. A physical quantity P is related to four observables a, b, c and d as ...

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  15. A book with many printing errors contains four different forumlae for...

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  16. A famous relation in phyics relates the moving mass m to the rest mas...

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  17. The unit of length convenient on the atomic scales is known as an angs...

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  18. One mole of an ideal gas at NTP occupies 22.4 liters (molar volume). W...

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  19. Explain this common observation clearly : If you look out of the windo...

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  20. The principle of 'parallax' in Art. 1(c ).4. is used in the determinat...

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  21. The nearest star to our solar system is 4.29 light years away. How mcu...

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