My date of birth is 19-11-1975 i. e. 19th November 1975. What will be my age on 10-10-2000.

Coefficient of linear expansion of aluminium is 19 times 10^(-6) per degree celsius. What will be the value of this coefficient in Fahrenheit scale?

My date of birth is ______ . Today my age is _____ yrs _____ month _____ days.

The age of my father is 48 years, age of my mother is 42 years, age of my elder brother is 15 years and my age is 12 years. Hence, the ratio of the ages of my father, mother, brother and myself is 48 : 42 : 15 : 12 i.e. square:square:square:square

Radius of the Bohr orbit of hydrogen atom is 0.53 Å . What will be the velocity of the electron in the second quantum state? Given, mass of electron = 9.1xx10^(-31) kg and e=1.6 xx10^(-19) C .

In a closed circuit,the current I(in ampere) at an instant of time t( in seconds) is given by I=4-0.08t . What will be the number of electrons flowing in 50 s through the cross section of the conductor ? (charge of an electron= 1.6 times 10^-19C )

At present, my father’s age is 7 times of my age. After 10 years my father’s age will be 3 times of my age. Let’s find and write the present age of my father and me.

My age is 10 years 11 month 18 days. The age of my younger brother is 7 years 5 months and 20 days, and the age of my elder brother is 13 yrs 8 month 12 days. Let’s find the total age of three of us.

A conductor is charged with 14.4 xx 10^(-19) C. Determine the number of deficit of electrons in it. What will be the change in mass of the conductor?

An electron (charge =-1.6xx10^(-19)C , mass =9.1xx10^(-31)kg ) enters a magnetic field of strength 0.001 T with a velocity of 10^(5)m.s^(-1) at an angle 60^(@) with the direction of the field. What will be the time period and pitch of the electron in that magnetic field?

In a cyclotron the frequency of alternating current is 12 MHz and the radii of its dee is 0.53m . What should be the operating magnetic field to accelerate protons ? Given mass of proton =1.67xx10^(-27) kg and charge =+1.6xx10^(-19)C .