Question

@MTALHAHASSAN2

Answer 1

COME HERE

Answer 2

we can discuss here

Answer 3

anyway can u tell me abt perpendicular component of a vector

Answer 4

we will discuss chapter 1 later

Answer 5

Events may seem to take longer to an observer who is in motion with respect to an event. True or False?

Answer 6

@shamim do you know this one?

Answer 7

i think u r now studying Einstein's special theory of relativity

Answer 8

its called time dialation

Answer 9

time dialation=moving clock ticks slowly

Answer 10

yes we are studying Einstein's special theory of relativit

Answer 11

time is also relative

Answer 12

answer will b
true

Answer 13

so..there are two type of time:
time dialation
time relative
right?

Answer 14

no!

Answer 15

u hv 2 kinds of time

Answer 16

1. proper time

Answer 17

2. time observed frm a moving frame of referance

Answer 18

oh ok

Answer 19

for example if the clock is at rest then u will c the time
\[t _{0}\]

Answer 20

and if the clock is moving with a velocity near to the velocity of light the the observer will c the time
\[t\]

Answer 21

got it

Answer 22

do u know the relationship between t and
\[t _{0}\]

Answer 23

\[t=\frac{ t _{0} }{ \sqrt{1-\frac{ v ^{2} }{ c ^{2} }} }\]

Answer 24

you mean t initial and t final

Answer 25

no
not at all

Answer 26

if the clock where i m watching time is at rest
then the time is
\[t _{0}\]

Answer 27

and if the clock is moving with very high speed then we will c the time is
t

Answer 28

and those 2 observed time is real but not same

Answer 29

if
\[t _{0}= 2 hours\]

Answer 30

it may b
t=5 hours

Answer 31

so..t is greater then the to

Answer 32

anyway can we solve a math problem related with this formula of special theory of relativity

Answer 33

yes!!!!

Answer 34

t> \[t_{0}\]

Answer 35

ok c my equation

Answer 36

nd say if a spaceship is moving with the speed of 0.9c and the proper time =2 hours , tell me t=?

Answer 37

________________ proposed that if photons have wave properties, all moving objects can have wave properties.

Answer 38

sory

Answer 39

i dont know it who said this

Answer 40

anyway do u think audio facility is needed for better understanding

Answer 41

yes audio is better

Answer 42

The length of an object may seem longer to an observer who is in motion with respect to that length. True or false?

Answer 43

this is called length contraction- einstein's special theory of relativity

Answer 44

the formula is as
\[L=L_{0}\sqrt{1-\frac{ v ^{2} }{ c ^{2} }}\]

Answer 45

so..is that true?

Answer 46

\[L_{0}=\]= length of a rod when it is at rest with respect to observer

Answer 47

yes its true

Answer 48

so the length of an object is not constant

Answer 49

it can vary

Answer 50

is it the same one with the previous question?

Answer 51

length will b reduced if it is moving with high speed

Answer 52

There are no experimental records indicating that time dilation actually happens. True or False?

Answer 53

previous question was a question relativity of time

Answer 54

and this question is a question of relativity of length

Answer 55

this is called length contraction

Answer 56

previous 1 is time dialation

Answer 57

u know length of a moving object is smaller than the real length

Answer 58

do you this one?

Answer 59

which 1 ?!!

Answer 60

There are no experimental records indicating that time dilation actually happens. True or False?

Answer 61

false

Answer 62

don't explain just give me the answer I have to finish it

Answer 63

its due today so..

Answer 64

there r many experiment occured in this earth which proved time dialation is correct

Answer 65

oh ok

Answer 66

Rest mass and energy are equivalent. True or False?

Answer 67

actually according to the rule of openstudy, its not fair to give just result, but eed to explain throughly

Answer 68

need

Answer 69

i think u r not understanding this facts . right ?!

Answer 70

the formula is
\[E=m_{0} c ^{2}\]

Answer 71

I know the rules of the open study but sorry I have to finish the assignment its due in one hour

Answer 72

E= equivalent energy
m_0= rest mass/ mass of an object at rest
c=light velocity

Answer 73

the answer is =true

Answer 74

ok thanks

Answer 75

anyway wts time now in canada

Answer 76

u r most welcome !!

Answer 77

bro its 4 am

Answer 78

wow............

Answer 79

when u sleep?

Answer 80

and i have an hour to complete the assignment

Answer 81

Electromagnetic energy is transmitted via massless particles called

Answer 82

is it Electromagnetic radiation?

Answer 83

electromagnetic radiation is =light

Answer 84

electromagnetic rediation =x ray/ gamma ray etc

Answer 85

do u know abt photon

Answer 86

photon is a massless particle

Answer 87

light made of photon

Answer 88

photon has frequency

Answer 89

oh really

Answer 90

so photon has energy

Answer 91

a particle representing a quantum of light or other electromagnetic radiation. A photon carries energy proportional to the radiation frequency but has zero rest mass.

Answer 92

so..photon is the right answer?

Answer 93

right!!!

Answer 94

yes !!

Answer 95

photon is right answer!!

Answer 96

energy of a photon with frequency f
\[E=hf\]

Answer 97

h= plank's constant

Answer 98

so higher the frequency of a photon higher the energy of that photon