2726: Consider the following statements:
A digital signature is
1. an electronic record that identifies the certifying authority issuing it
2. used to serve as a proof of identity of an individual to access information or server on Internet
3. an electronic method of signing an electronic document and ensuring that the original content is unchanged
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 3 only
(d) 1, 2 and 3
2727: Regarding the atom of a chemical element, the magnetic quantum number refers to
(a) orientation
(b) shape
(c) size
(d) spin
2728: Azolla gives a good biofertilizer when mixed with:
(a) Blue-green algae
(b) Cow dung
(c) Bone-meal
(d) Urea
2729: A shop offers 10 percent discount on the purchase of any article. It also offers an additional 12 percent discount if the payment is made in cash. If the original price of the item is Rs. 250, then what is its actual price if paid in cash?
(a) Rs. 220
(b) Rs. 195
(c) Rs. 198
(d) None of these
2730: Fawazil in the Sultanate period meant
(a) extra payment made to the nobles
(b) revenue assigned in lieu of salary
(c) excess amount paid to the exchequer by the iqtadars
(d) illegal exactions extracted from the peasants