Question
If the angular diameter of the sun is 20’, how far
from the eye a coin of radius 3.3 cm be kept to hide the sun?Solution
Arc AB = Diameter of coin = 3.3 × 2 = 6.6 cm θ = 20’ = (20/60)^° = (1/3)^° θ in radian = (1/3 × π/180)^c = (π/3)^c θ = arc/radius ⇒ π/540 = 6.6/r ∴ r = (6.6×540)/22 × 7 = 1134 cm.
ACID properties in DBMS ensure:
Which of the following best describes the control flow when a method in a subclass overrides a method in its superclass, and an object of the subclass i...
Which SQL statement is used to remove all rows from a table without logging individual row deletions?
Which of the following illustrates an advantage of DBMS over traditional file systems?
In PL/SQL, a `CURSOR` is used to:
Which normal form eliminates repeating groups by putting them into separate tables and connecting them through foreign keys?
Which of the following is used to remove all records from a table without removing the table structure?
Which type of DBMS model organizes data in tables with rows and columns?
An RDBMS provides mechanisms for data integrity, such as primary keys and foreign keys, which are generally lacking in:
Which of the following is true about ACID properties in DBMS?
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