General Science - Online Test
Q1. If the radius of earth contracts to half of its present value, the mass remaining unchanged, the duration of the day will be
Answer : Option C
Explaination / Solution:
As the Moment of inertia of earth considered as sphere is I = 2/5 MR2 , thus according to law of conservation of angular momentum as the radius contracts to half , thus new moment of inertia of earth will be I/4 , thus the angular velocity will increase 4 times and making the length of the day to 6 hrs.
Q2. A soap bubble has radius r and the surface tension of the soap film is T. The energy needed to double the diameter of the bubble without change of temperature is
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. Largest single mass of lymphatic tissue in the body is
Answer : Option D
Explaination / Solution:
Spleen is the largest single mass of lymphatic tissue in body. Blood formation in foetus and newly born child takes place in spleen.
Q4. A plant that is partially heterotrophic is
Answer : Option B
Explaination / Solution:
Drosera plant is partially heterotrophic. This plants capture insects to fulfill its protein requirement although it performs photosynthesis also.
Q5. The non-aromatic compound among the following is
Answer : Option B
Explaination / Solution:
The compound B does not satisfy the (4n+2)pi electron rule and is therefore not an aromatic compound.
Q6. The main source of foreign capital in India is
Answer : Option D
Explaination / Solution:
Foreign capital comes to India from both of these sources, i.e., loans from abroad as well as foreign direct investment (FDI).
Q7. Point out a merit of flexible exchange rate
Answer : Option D
Explaination / Solution:
Flexible exchange rate is determined by the forces of demand and supply i.e. where demand equals supply eliminating the undervaluation or overvaluation of currencies.
Q8. Find the range of the group of numbers -10, -8, 1, 11, 19.
Answer : Option A
Explaination / Solution:
R= L-S, Where L is largest item and S is smallest item
R=19-(-10)= 19+10= 29
Q9. The structure of ClF3 is
Answer : Option B
Explaination / Solution:
CN=0.5(V+M-C+A)
For ClF3 . CN= 5 so hyb is sp3d . Structure is trigonal bipyramidal.
Q10. The type of structure which contributes indirectly to economic process from outside the system of production and distribution known as
Answer : Option C
Explaination / Solution:
Social Infrastructure indirectly contributes to economic development of a country both by increasing the productivity of the factors of production and improving the quality of life of its people.
