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1. Which state of matter associated with the very highest

Question : 1. Which state of matter associated with the very highest : 2102174

1. Which state of matter is associated with the very highest of temperatures?

A. liquid

B. plasma

C. gas

D. solid

2. A copper wire of length 2.0 m, cross sectional area 7.1 ´ 10-6 m2 and Young's modulus 11 ´ 1010 N/m2 has a 200-kg load hung on it. What is its increase in length? (g = 9.8 m/s2)

A. 0.50 mm

B. 1.0 mm

C. 2.5 mm

D. 5.0 mm

3. In an elastic solid there is a direct proportionality between strain and:

A. elastic modulus.

B. temperature.

C. cross-sectional area.

D. stress.

4. The quantity "stress" expressed in terms of the fundamental quantities (mass, length, time) is equivalent to:

A. MLT-1.

B. ML-1T-2.

C. M2L-1T-3.

D. a dimensionless quantity.

5. The quantity "strain" expressed in terms of the fundamental quantities (mass, length, time) is equivalent to:

A. MLT-1.

B. ML-1T-2.

C. M2L-1T-3.

D. a dimensionless quantity.

 

Solution
5 (1 Ratings )

Solved
Physics 1 Year Ago 228 Views
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