Subject :NSO Class : Class 5
Which of the following make use of magnetic materials to store information ?
(i) Computer floppy disks
(ii) Cassette tapes
(iii) Video tapes
(iv) Cashcard
(B) (ii), (iii) & (iv)
(D) (i), (ii), (iii) & (iv).
Ans 1:
Class : Class 5
question no 19 and 20 are coming together.