What is the sum of all the four angles of a rectangular?
- (A) 180°
- (B) 360°
- (C) 380°
- (D) None of these
- (B) 360°
Why water pipes are burst in extreme cold weather the water inside them is frozen?
- (A) Pipes are damaged due to extreme cold weather
- (B) Pipes are of poor quality
- (C) Water inside pipes expands on freezing
- (D) None of these
- (C) Water inside pipes expands on freezing
In general, Comets have _______ orbits.
- (A) Highly elliptical
- (B) Highly circular
- (C) Highly spiral
- (D) None of these
- (A) Highly elliptical
Which of the following is the densest substance on earth?
- (A) Ferrous
- (B) Osmium
- (C) Calcium
- (D) None of these
- (B) Osmium
Which of the following is NOT an insulator?
- (A) Mercury
- (B) Glass
- (C) Ebonite
- (D) None of these
- (A) Mercury
Earth is a _______.
- (A) Star
- (B) Rocky planet
- (C) Comet
- (D) None of these
- (B) Rocky planet
Which of the following is NOT a conductor of electricity?
- (A) Tap water
- (B) Acidified water
- (C) Distilled water
- (D) None of these
- (C) Distilled water
Which of the following is a conductor of electricity?
- (A) Wood
- (B) Iron
- (C) Paper
- (D) None of these
- (B) Iron
On February 11, 2016, LIGO reported the detection of:
- (A) Gravitational waves
- (B) Electric waves
- (C) Radio waves
- (D) None of these
- (A) Gravitational waves
Which of the following lenses is used in photographic camera?
- (A) Convex lens
- (B) Concave lens
- (C) Plane lens
- (D) None of these
- (A) Convex lens