Optics and LaserSingle mode fibre For a typical step-index fibre (NA = 0.11, Acut-off = 620 nm) operated in the single-m... 查看全部
6. Two people are standing on a rotating platform as shown. Each person has a mass of 70 kg, and hold a metal pole as sh... 查看全部
2 poi A proton (with mass mp1,67x10-27 kg and charge p160x10 19 moves in a circular path in a magnetic field of 8-0.500,... 查看全部
An electron has been accelerated by a potential difference of100 V. If its position is known to have an uncertainty of 1... 查看全部
QUESTION 1 A closed loop of an irregular shape is placed in a region of uniform magnetic field of magnitude B-1,78 T as ... 查看全部
5. The two most massive bodies in the solar system are the Sun and the planet Jupiter, with masses of Ms = 1.99 x 1030 k... 查看全部
Q12. The tiny distance between slits can be difficult to measure. But you can use the interference pattern to find the s... 查看全部
QUESTION 2 A conducting wire is turned in a circular loop 100 times. If the wire carries a current of -2.36 A, find the ... 查看全部
A proton enters a region with a velocity of -1 59106 m/s where there are both electric and magnetic fields. If the proto... 查看全部
Calculate the standard heat of fomation of solid wog from solid Wand Oz ses at 25°C (298 ) and 1 at pressure from the fo... 查看全部