5 Mindblowing U0001f92f Facts You Didn't Know | #shorts #actonfact #amazingfacts #facts #factsinhindi

A horizontal force Facts on the lower block which is connected with another block kept on it. The two blocks are connected by a light, smooth inextensible string that passes over a fixed pulley. If the co-efficient of friction between all contact surfaces is u , then minimum value of F so that the block starts moving.

The well know mineral flourite is chemically calcium fluoride. It is a well known fact that in one unit cell of this mineral, there are four Ca^(2+) ions and eight F^(-) ions and Ca^(2+) ions are arranged in f.c.c. lattice. The F^(-) ions fill all the tetrahedral holes in the face centred cubic lattice of Ca^(2+) ions. The edge length of the unit cell is 5.46xx10^(-8) cm. The density of the solid is 3.18"g cm"^(-3) . Use this information to calculate Avogadro's number (Molar mass of CaF_(2)=78.0"g mol"^(-1) )

Directions: Each of the questions below consists of a question and two or three statements given below It. You have to decide whether the data provided in the statements are sufficient to answer the question 15) Among P, T, J, F and L who scored the highest? I) P scored less than J and F, II) T scored more than F but less than L. III) J has not scored the highest. 1) Only I and II 2) Only I and III 3) Only II and either I or III 4) Only I and either II or III 5) All I, II and III

A solid shere of mass m and radius R is kept over a rough ground. A time varying force F=2t is acting at the topmost point as shown in figure. (a). Find angular momentum of the sphere about the bottommost point as a function of time t (b). Does this result depend on the fact whether the ground is rough or smooth?

You have to take the diagram to be true even if it seems to be at variance from commonly known facts and then decide which of the five alternatives following each question logically follows from the given diagram. Which of the following represents such dancers who are also singers but not college students ? 1)Only C 2) Only A 3) F and G 4) C and F 5) Only B

Each of question given below is based on the given diagram. You have to take the given diagram to be true even if it seems to be at variance with commonly known facts and then decide which of the five alternatives following each question logically follows from the given diagram. The diagram comprises three circles showing people from three different countries who have travelled to either , both or none of the countries mentioned in the diagram. Which of the following represents such Indians as have travelled only to the USA and not to Europe? 1) Only F 2) Only D 3) A and D 4) D and F 5) C and F