The quotient when `10^(100)` is divided by `5^(75)` is a. `2^25 xx10^(75)` b. `10^(25)` c. `2^(75)` d. `2^(75)xx10^(25)`

Divide: 12.75 by 10 (ii) 127.5 by 100

A radioactive element has half life of 4.5 xx 10^(9) years. If 80 g of this was taken, the time taken for it to decay to 40 g will be a. 2.25 xx 10^(9) years b. 4.50 xx 10^(9) years c. 6.75 xx 10^(9) years d. 8.75 xx 10^(9) years

A radioactive element has half life of 4.5 xx 10^(9) years. If 80 g of this was taken, the time taken for it to decay to 40 g will be a. 2.25 xx 10^(9) years b. 4.50 xx 10^(9) years c. 6.75 xx 10^(9) years d. 8.75 xx 10^(9) years

Simplify : (2.75xx10^7)+(1.23xx10^8)

A metallic rod completes its circuit as shown in the figure. The circuit is normal to a magnetic field of B=0.15 tesla. If the resistances of the rod is 3Omega the force required to move the rod with a constant velocity of 2m//sec is- A. 3.75xx10^(-3) N B. 3.75 xx10^(-2) N C. 3.75 xx10^(2) N D. 3.75 xx10^(-4) N

Show with regards to significant figure (i) 908 + 2.76 (ii) 999-989 (iii) 4.0 xx 10^(4) - 2.5 xx 10^(2) (iv) 4.0 xx 10^(4) - 2.5 xx 10^(5) (v) 6.75 xx 10^(3) + 4.52 xx 10^(2) (vi) 625 + 125

Show with regards to significant figure (i) 908 + 2.76 (ii) 999-989 (iii) 4.0 xx 10^(4) - 2.5 xx 10^(2) (iv) 4.0 xx 10^(4) - 2.5 xx 10^(5) (v) 6.75 xx 10^(3) + 4.52 xx 10^(2) (vi) 625 + 125

Show with regards to significant figure (i) 908 + 2.76 (ii) 999-989 (iii) 4.0 xx 10^(4) - 2.5 xx 10^(2) (iv) 4.0 xx 10^(4) - 2.5 xx 10^(5) (v) 6.75 xx 10^(3) + 4.52 xx 10^(2) (vi) 625 + 125

6.75xx10^(3)cm+4.52xx10^(2)cm = __________