The length of a rod moving with a velocity equal to 0.8c would be modified if the proper length is equal to 100 cm. The modified length of this moving rod would be equal to
1
50 cm
2
60 cm
3
70 cm
4
65 cm
5
Question Not Attempted
The length of a rod moving with a velocity equal to 0.8c would be modified if the proper length is equal to 100 cm. The modified length of this moving rod would be equal to