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Jet engine works on the principal of conservation of ______.
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A jet engine works on the principle of conservation of linear momentum. In jet engines, a large volume of gases produced by the combustion of fuel is allowed to escape through a jet in the backward direction.
In the following figure two semicircle are drawn with diameter AB and CD. AE =3 cm, EF = 7 cm and FB = 2 cm. What is the value of CD?
Name the Group and Period of Modern Periodic Table in which Carbon is placed?
Carbon (from Latin: carbo "coal") is a chemical element with symbol C and atomic number 6. It is nonmetallic and tetravalent—making four electrons available to form covalent chemical bonds. It belongs to group 14 of the 2nd period in the periodic table
The maximum fixation of solar energy is done by-
The maximum fixation of solar energy is done by green plants.The energy is stored in the plants as carbohydrates for their metabolic activities as growth,respiration etc.
An assertion (A) and reason (R) are given below.
Assertion (A) : Nowadays, more people opt for fast food.
Reason (R) : Fast food is always inexpensive .
Choose the correct option.
Assertion is true as nowadays, more people opt for fast food but reason is false as fast food is not always inexpensive, some fast food is expensive too.
Which of the following is used for the preparation of dynamite?
Nitro Glycerol is used for the preparation of dynamite. Dynamite is an explosive made of nitroglycerin, sorbents and stabilizers.
Directions For Questions
In the following question, some statements are given followed by some conclusions. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follow the given statements, disregarding commonly known facts.
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Statements :
Some kings are queens.
All queens are beautiful.
Conclusions:
I : All kings are beautiful.
II : All queens are kings.
As per Venn diagram, it is not confirmed whether all kings are beautiful or not, only some king are beautiful is confirmed and all queens are kings or not is confirmed, only some queen are kings is confirmed, therefore Neither Conclusion I nor II follows.
The Cabinet meeting on May 31 decided to cover all the farmers, irrespective of their land holdings, under PM Kisan scheme that promises to transfer ……….. in their bank accounts.
In a major push to boost rural consumption, the Modi-leads Indian government in its first Cabinet meeting on May 31 decided to cover all the farmers, irrespective of their land holdings, under PM Kisan scheme that promises to transfer Rs. 6,000 in their bank accounts. The revised scheme envisages to cover 2 crore more farmers with an estimated expenditure of Rs. 87,217.50 crore in 2019-20.
The volume ( in cu.cm) of a right circular cylinder with radius 2 cm and height 2 cm is: ( take π = 22/7)
Volume of right circular cylinder = π r2h = 22/7 × 2 × 2 × 2
= 176/7
Where was the G7 summit 2019 held?
The 45th G7 summit is being held during 24 August to 26 August 2019 in Biarritz, France.
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