Question

1.If the people posing for a photo are data ,then the photo uploaded on the Facebook with the name of the people in it is :
(a) processing
(b) Backing store
(c) Information
2. A collection of related records is also known as:
(a) Field
(b) Database
(c) File
3. Which of the following is a composite key most closely related to?
(a) Primary key
(b) Foreign key
(c) None of these
4. Can a primary key ever be NULL?
(a) Yes
(b) No
(c) It depends
5. Before starting to enter data in a table, you must create the:
(a) Design of the table
(b) Database from which to read the data
(c) Empty the table
6. How would you sort data in a table?
(a) Choose a to z or z to a from data view of table
(b) Place the cursor on the column by which to sort and choose a to z orz to a
(c) None of these​

Answer 1

Answer:

The hour hand of a clock covers 30 deg in 60 min or 0.5 deg/min. The ratio of the angular speed of the minute to the hour hand = 6/0. 5=12:1.