In a typical H-R diagram, stars are graphed by these two characteristics: A. Temperature and luminosity (Answer) B. Luminosity and distance C. Distance and temperature D. Size and distance

In a typical H-R diagram, stars are graphed by these two characteristics:

A. Temperature and luminosity (Answer)

B. Luminosity and distance

C. Distance and temperature

D. Size and distance
by

1 Answer

Answer :

A. Temperature and luminosity (Answer)
by

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Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below: (A) Both A and R is true and R is correct explanation of A (B) Both A and R is true and R is not a correct explanation of A (C) A is true but R is false (D) A is false but R is true

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Stars twinkle but planets do not twinkle because – (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from the earth resulting in decrease in intensity of light (4) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

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The physical location of a satellite is determined by its A. distance from the earth B. latitude and longitude C. reference to the stars D. position relative to the sun

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‘Parsec’ is the unit measurement of (1) Density of stars (2) Astronomical distance (3) Brightness of heavenly bodies (4) Orbital velocity of giant stars

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Stars twinkle but planets do not twinkle because (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from the earth resulting in decrease in intensity of light (4) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

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Last Answer : they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Calculate the recoverable waste heat (Q, in kCal/hour) from flue gases using the followingparameters: V (flow rate of the substance) 2000 m3/hr r (density of the flue gas): 0.9 kg/m3 Cp (specific heat of the substance): 0.20 kCal/kg oC DT (temperature difference): 120 oC h (recovery factor): 50% a. 21600 b. 43200 c. 25600 d. 34000

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If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is 6.6 × 109 bp, then the length of the DNA is approximately (a) 2.0 meters (b) 2.5 meters (c) 2.2 meters (d) 2.7 meters.

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How long is a typical distance learning course in early childhood education?

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Do stars vary greatly in size and color only.?

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Do stars vary greatly in size and color only.?

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