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PHYSICS MCQs

Total Questions : 421 | Page 42 of 43 pages
Question 411.

How many minimum number of ector of equal magnitude are required to produce zero resultant


  1.    2
  2.    3
  3.    4
  4.    more than 4
 Discuss Question
Answer: Option A. -> 2


Question 412.

4.32x2.0


  1.    8.64
  2.    8.6
  3.    8.60
  4.    8.640
 Discuss Question
Answer: Option B. -> 8.6


Question 413.

1.0x2.88 is equal to


  1.    2.88
  2.    2.880
  3.    2.9
  4.    none of these
 Discuss Question
Answer: Option C. -> 2.9


Question 414.

The height of a man is 5.87532 ft. But measurement is correct upto three significant figures. The correct height is


  1.    5.86 ft
  2.    5.87 ft
  3.    5.88 ft
  4.    5.80 ft
 Discuss Question
Answer: Option A. -> 5.86 ft


Question 415.

1.00x2.88 is equal to


  1.    2.88
  2.    2.880
  3.    2.9
  4.    none of these
 Discuss Question
Answer: Option A. -> 2.88


Question 416.

The value of universal gas constant is R=8.3J/kcal/mol. Find the value of R in atmosphere litre per kelvin/mol


  1.    8.12 atm litre/K/mol
  2.    0.00812 atm litre/K/mol
  3.    81.2 atm litre/K/mol
  4.    0.0812 atm litre per kelvin per mol
 Discuss Question
Answer: Option D. -> 0.0812 atm litre per kelvin per mol


Question 417.

Generally, sugar cubes are added to coffee. Atypical sugar cube has an edge of length of 1 cm. Minimum edge length of a cubical box containing one mode of the sugar cubes


  1.    840 km
  2.    970 km
  3.    780 m
  4.    750 km
 Discuss Question
Answer: Option A. -> 840 km


Question 418.

The concorde is the fastest airlines used or commercial service. It can cruise at 1450 mile per hour (about two times the speed of sound or inother words, mach 2) what is it in m/s?


  1.    644.4 m/s
  2.    80 m/s
  3.    40 m/s
  4.    None of these
 Discuss Question
Answer: Option A. -> 644.4 m/s


Question 419.

One calorie of heat is equivalent to 4.2 J. one BTU(Brutish thermal unit) is equivalent to 1055 J. The value of one BTU in calorie is


  1.    251.2 cal
  2.    200 cal
  3.    263 cal
  4.    none of these
 Discuss Question
Answer: Option A. -> 251.2 cal


Question 420.

One nautical mile is 6080 fr. The same in kilometre is


  1.    0.9 km
  2.    0.8 km
  3.    1.85 km
  4.    none of these
 Discuss Question
Answer: Option C. -> 1.85 km


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