`h_1 = 600` m, `R = 6.4 xx 10^6` m. `d_1 = ? h_1 = ?`

Calculate the K.E, P.E, Total energy and Binding energy of an artificial satellite of mass 2000kg orbiting at a height of 3600 km above the surface of the earth Given: G = 6.67 xx 10^-11 Nm^2//kg R= 6400 km= 6.4 xx 10^6 m M= 6 xx 10^24 kg m = 2000 kg h = 3600 km = 3.6 xx 10^6 m

Earth's magnetic field at the equator is approximately 4 xx 10^-5 tesla, R = 6.4 xx 10^ m, mu_o = 4pi xx 10^-7 SI unit. Calculate Earth's dipole moment.

Show that (1 kWh = 3.6 xx 10^6J ).

Solve the following examples / numerical problems: What will be the gravitational force on 60 kg man on the Moon,Mars and jupiter ? Are they the same ? why ? M (Moon) = 7.36xx10^22 kg, R (Moon)= 1.74 xx 10^6 m. M (Mars) = 6.4xx 10^23 kg, R (Mars) = 3.395 xx10^6 m, M (Jupiter)=1.9xx10^27 kg. R (Jupiter) = 7.15xx10^7m. G=6.67 xx10^-11 N-m^2 / kg^2.

Solve the following examples / numerical problems: Find the gravitational potential energy of a body of mass 10 kg when it is on the earth's surface. [M_(earth) = 6 xx10^24 kg , R_(earth) = 6.4 xx10^6m, G= 6.67 xx 10^-11 N-m^2/kg^2]

The photoelectric threshold wavelength of silver is 3250 xx 10^(-10) m . The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536 xx 10^(-10) m is (Given h = 4.14 xx 10^(6) ms^(-1) eVs and c = 3 xx 10^(8) ms^(-1))

Write down the number of significant figures in the following: 0.003 m^2 , 0.1250 gm cm^(-2), 6.4 xx 10^6 m, 1.6 xx 10^(-19)C, 9.1 xx 10^(-31)kg .

The following observations were taken for dtermining the surface tension of water by capillary tube method: diameter of capillary , D = 1.25 xx 10^(-2) m and rise of water in capillary , h = 1.45 xx 10^(-2) m . Taking g = 9.80 m s^(-2) and using the relation T = ( r gh//2) xx 10^(3) N m^(-1) , what is the possible error in measurement of surface tension T ? (a) 2.4% (b) 15% (c) 1.6% (d) 0.15%

If wavelength of photon is 2.2 xx 10^-11m , h = 6.6 xx 10^-34 Js , then momentum of photon is_____.