10 अजीब फैक्ट, जिसे पहली बार जानोगे | 10 Strange Facts That Blow Your Mind | Facts | #shorts

10 हिंदी जासूसी और मजेदार पहेलियाँ | Hindi Paheliyan | Hindi Paheliyan | Mind Your Logic

The considerably greater acidic strength of PhOH (pK_(a) = 10) than that of ROH (pK_(a) = 18) is due to the fact that

The gravitational attraction between electron and proton in a hydrogen atom is weaker than the coulomb attraction by a factor of about 10^(-40) . An alternative way of looking at this fact is to estimate the radius of the first Bohr orbit of a hydrogen atom if the electron and proton were bound by gravitational attraction. You will find the answer interesting.

You are making a snack for you some friends to help0 you get ready for a full night of studing. You decide that coffee, toast and popcorn would be a good start. You turn on the toaster (900 W), place some popcorn in the microwave (1200 W), and turn it on. Because your apartment is an older building, the fuse (10 A rating) may blow when you turn on too many appliances at 220 V . (i) Should you suggest the coffeemaker (600 W) ? (ii) Check the answer to part (i). (iii) If not, suggest an alternative to start the coffeemaker. (iv) Which human quality corresponds to blowing of the fuse ?

Period of revolution of the moon is 27.32 days and its mean distance from earth is 384,400km . Use the equation M_(1)+M_(2)=(4pi^(2))/G.(a^(3))/(T^(2)) to calculate the sum of the masses of the earth and moon. Further, using the known fact that the earth moon system lies ate 4.75xx10^(6)m from earth's centre, calculate the mass of each.

Calculate the Avogadro's number using the charge on the electron 1.60 xx 10^(-19)C and the fact that 96500 C deposits 107.9 g silver from its solution.

A vertical steel beam at the base of buiolding is 6.0 m tall, thas a mass of 300 kg, and supports a load of 3.0xx10^(5)N . If the beam's temperature decreases by 4.0^(@)C , calculate the change in its internal energy using the facts that for steel c_(p) is 0.11 "kcal"//kg^(@) and the coefficient of the linear expansion is 11xx10^(-6).^(@)C^(-1)