Bissoy.com
Doctors Medicines MCQs Q&A

The weights of three objects X, Y and Z measured on three celestial bodies are listed in the box. (g on the Moon, Jupiter and Mercury are 1.7 m s-2, 25.4 m s-2 and 3.8 m s-2 respectively)  Object X on the Moon is 340 N.  Object Y on Jupiter is 6096 N.  Object Z on Mercury is 399 N. Which of the following sequences shows X, Y, and Z in ascending order of their masses?

The weights of three objects X, Y and Z measured on three celestial bodies are listed in the box. (g on the Moon, Jupiter and Mercury are 1.7 m s-2, 25.4 m s-2 and 3.8 m s-2 respectively)  Object X on the Moon is 340 N.  Object Y on Jupiter is 6096 N.  Object Z on Mercury is 399 N. Which of the following sequences shows X, Y, and Z in ascending order of their masses? Correct Answer Z, X, Y

CONCEPT:

  • The acceleration achieved by any object due to the gravitational force of attraction by any planet is called acceleration due to gravity by the earth
  • Weight: The force applied by the earth on anybody having mass is called the weight of that body.
    • It is denoted by W.
    • Mathematically it is can be written as

⇒ W = mg

Where m = mass of the body and g = acceleration due to gravity

EXPLANATION:

Given - gMoon = 1.7 m s-2, gJ = 25.4 m s-2, gMer = 3.8 m s-2, WMoon = 340 N, WJ = 6096 N and WMer = 399 N

  • The weight of the body on the moon can be calculated as

⇒ WMoon = mMoongMoon

⇒ mMoon =   WMoon/ gMoon = 340/1.7 = 200 kg      ------- (1)

  • The weight of the body on the Jupiter can be calculated as

⇒ WJupiter  = mJupitergJupiter 

⇒ mJupiter =   WJupiter/ mJupiter = 6096/25.4 = 240 kg      ------- (2)

  • The weight of the body on the mercury can be calculated as

⇒ Wmercury  = mmercurygmercury

⇒ mmercury =   Wmercury/ gmercury = 399/3.8 = 105 kg      ------- (3)

  • From the above equations, it is clear that the mass of the object is least on mercury and it is maximum on the Jupiter. 
  • Therefore, the ascending order of their masses is Z, X, Y. Hence option 2 is correct.

Related Questions

Directions: Seven different boxes A, B, C, D, E, F and G of different colours viz., Orange, Pink, Purple, Yellow, Blue, Red and Green are arranged one above the other. The box at the bottom of arrangement is numbered 1, the above box is numbered 2 and so on. B is immediately above E. More than two boxes are above the Orange box. The Yellow box is immediately below A. Only one box is between the Orange box and F. G is immediately above the Red box. Only one box is between B and the Pink box. Only two boxes are between the Pink and the Green box. Only two boxes are between the Yellow box and the Orange box. The Purple box is neither at the top nor at the bottom of the arrangement.B is above Pink box. C is immediately above F. Neither C nor G is a Yellow box. G is not a Orange box. Question: Which combination represents the position of C and its colour?
Five boxes B1, B2, B3, B4 and B5 are placed one above the other in racks. The lowermost rack is numbered as one and just above the lowermost is numbered as two and so on. Each box is coloured with different colour such as L1, L2, L3, L4 and L5 (not necessarily in the same order). Two boxes are placed between L2 coloured box and L5 coloured box. Box B1 is not placed immediately above box B3. Box B4 is placed in the top most rack. L1 coloured box is placed immediate above L5 coloured box. Box B3 is coloured with L4. L5 coloured box is placed above L4 coloured box. Box B2 is coloured with L1. Which of the following boxes are placed immediately above and immediately below B5 box respectively?
The phases of the moon as we see from the Earth are due to changing relative positions of the sun, the earth and the moon. Which of the following statements is true. A. on a full moon day, the earth comes between the sun and the moon B. on a new moon day, the moon is in between the earth and the sun C. on a full moon day, the moon is in between the earth and the sun D. on a new moon day, the earth is between the sun and the moon? E. on a new moon day, the sun is between the moon and the earth
In the question given below are two conclusions followed by five statements. You have to choose the correct set of statements that logically satisfies conclusions. Conclusions: I. Some Star are Moon II. Some Sun are not Mars Statements: I. Some Sun are Moon, Some Moon are star and No star is Mars. II. Some Sun are Moon, All Moon are Star and No Star is Mars. III. All Sun are Moon, All Moon are Star and Some Star are Mars. IV. All Sun are Moon, Some Moon are Star and No Star is Mars. V. Some Sun are Moon, Some Moon are Star and No Moon is Mars.
Which two statements describe the IP address 10.16.3.65/23?
1. The subnet address is 10.16.3.0 255.255.254.0.
2. The lowest host address in the subnet is 10.16.2.1 255.255.254.0.
3. The last valid host address in the subnet is 10.16.2.254 255.255.254.0.
4. The broadcast address of the subnet is 10.16.3.255 255.255.254.0.
Six boxes, M, N, O, P, Q and R, are kept one above the other but not necessarily in the same order. There is only one box between box N and box R. Box Q is immediately below box N. There are only two boxes between box Q and box M. There is no box above box P. Box R is third from the bottom. Which box is third from the top?
Six boxes - A, B, C, D, E and F are placed around a circular table. Box C is placed fifth to the left box E. Box D is opposite to the box E. Box A is placed between box C and box D. Box B is placed adjacent to box E. Which box is exactly placed between box F and E?
Seven boxes of different colours, Red, Yellow, Blue, Green, Orange, Violet and Indigo were stocked one on the other, not necessarily in the same order. No other box was placed below the orange box. The Violet box was placed second to the top of the Blue box. The Green box was second to the bottom of the Indigo box. The Red box was placed at the topmost position. The Yellow box was exactly above the Indigo box. Which of the following is the correct pair of box and its position?
Six boxes containing different items namely, Copy, Pen, pencil, Scissor, Tape and Paper, are kept in a straight line, one after the other, not necessarily in the same order. The box of Pen is kept at the third position in the line from the left end. The box of Paper is kept at the extreme right end. The box of Pencil is kept somewhere between box of pen and box of paper. The box of Tape is kept at the left of the box of Pen but at the right of the box of Copy, when counting from the left end. The box of scissor is not kept immediately next to Paper. Which box is kept at the second position from the right end?
There is a pile of six boxes. The weight of the topmost box i.e., 6th box is one fifth of the second box, the weight of the fourth box is \(33\frac{1}{3}\)% more than the weight of the first box, whose weight is thrice that of fifth box’s weight. Also, weight of second box is 2.5 times the fifth box. The third box whose weight is 720 gm is 60% heavier than the fifth box. What is the average weight of the three lightest boxes?