1 Million+
Questions
50k +
Active Users
24hrs max.
Answering Time
Question : Who among the following Indian music composers won the Oscar Award in the year 2023?
Option 1: Mani Sharma
Option 2: A. R. Rahman
Option 3: Devi Sri Prasad
Option 4: M. M. Keeravani
Correct Answer: M. M. Keeravani
Solution : The correct option is M. M. Keeravani.
M. M. Keeravani is an Indian music composer who won the Best Original Song Award at the 95th Academy Awards in 2023, along with lyricist-singer Chandrabose, for the song "Naatu Naatu" from the movie RRR.
Question : Directions: In the following question, select the one which is different from the other three alternatives.
Option 1: dcba
Option 2: zyxw
Option 3: srpq
Option 4: hgfe
Correct Answer: srpq
Solution : Let's check the options – First option: dcba; The letters are written in the reverse order→abcd Second option: zyxw; The letters are written in the reverse order→wxyz Third option: srpq; The letters are not written in the reverse order→qprs Fourth option: hgfe; The letters are
Question :
Which of the following has no blood, but respires?
Option 1:
Fish
Option 2:
Earthworm
Option 3: Hydra
Option 4: Cockroach
Correct Answer: Hydra
Solution : The correct answer is Hydra.
The Genus Hydra falls under the Phylum Cnidaria and is a small group of freshwater Hydrozoans. The body of Hydra is cylindrical and radially symmetrical. The body of Hydra does not contain blood instead, they have Mesenchymal stem cells.
Question : From a point 12 m above the water level, the angle of elevation of the top of a hill is 60° and the angle of depression of the base of the hill is 30°. What is the height (in m) of the hill?
Option 1: $48 \sqrt{3}$
Option 2: $36$
Option 3: $36 \sqrt{3}$
Option 4: $48$
Correct Answer: $48$
Solution : Given : Point 12 m above the water level The angle of elevation of the top of a hill = $60^\circ$ The angle of depression of the base of the hill = $30^\circ$ Now, In triangle ABE $\Rightarrow \tan 30^\circ\ =\ \frac{AB}{BE}$ $\Rightarrow \frac{1}{\sqrt{3}}\ =\
Question : Assume that a drop of water is spherical and that its diameter is one-tenth of a cm. A conical glass has a height equal to the diameter of its rim. If 32,000 drops of water fill the glass completely, then the height of the glass (in cm) is:
Option 1: 1
Option 2: 2
Option 3: 3
Option 4: 4
Correct Answer: 4
Solution : Height of the glass $=h$ cm Radius of the glass $=\frac{h}{2}$ Volume of the glass $=\frac{1}{3}\pi r^2 h=\frac{1}{3}\pi (\frac{h}{2})^2 h$ Radius of the spherical drop $=\frac{1}{2\times10}=\frac{1}{20}$ cm Volume of a spherical drop $=\frac{4}{3}\pi r^3=\frac{4}{3}\pi (\frac{1}{20})^3$ Volume of 32,000 spherical drops $=32000\times\frac{4}{3}\pi (\frac{1}{20})^3$ Now, the volume
Question : If $\tan^4\theta + \tan^2\theta=1$, what is the value of $11(\cos^4\theta+\cos^2\theta)$?
Option 1: – 11
Option 2: 8
Option 3: 0
Option 4: 11
Correct Answer: 11
Solution : Given: $\tan^4\theta + \tan^2\theta=1$ ⇒ $\tan^2\theta(\tan^2\theta+1)=1 [\because \sec^2\theta-\tan^2\theta=1]$ ⇒ $\tan^2\theta \sec^2\theta=1$ $\therefore \tan^2\theta=\cos^2\theta$ $11(\cos^4\theta+\cos^2\theta)$ = $11[(\cos^2\theta)^2+\cos^2\theta]$ = $11(\tan^4\theta + \tan^2\theta)$ = $11×1$ = $11$ Hence, the correct answer is 11.
Question : If $\cos A=\frac{1}{2}, 0 \leq A \leq 90^{\circ}$, then what is the value of sin (180 - A)?
Option 1: $\frac{1}{2}$
Option 2: $\frac{\sqrt{3}}{2}$
Option 3: $\frac{1}{\sqrt{3}}$
Option 4: $1$
Correct Answer: $\frac{\sqrt{3}}{2}$
Solution : According to the question sin2A + cos2A = 1 ⇒ sin$^{2} A + \frac{1}{2}^{2}$ = 1 ⇒ sin$^{2} A + \frac{1}{4}$ = 1 ⇒ sin$^{2} A = 1 - \frac{1}{4}$ = $\frac{3}{4}$ ⇒ Sin A = $\frac{\sqrt{3}}{2}$ Now, ⇒ sin(180 −
Question : Find the length of the arc if the angle at the centre of the circle of radius 7 units is 60°.
Option 1: $4$ units
Option 2: $\frac{11}{4}$ units
Option 3: $\frac{22}{3}$ units
Option 4: $21$ units
Correct Answer: $\frac{22}{3}$ units
Solution : Given: The radius of the circle: 7 units The angle at the centre is 60°. Length of arc = $\frac{θ}{360°} × 2πr$, here $r$ is the radius and $\theta$ is the angle at centre. ⇒ Length of the arc = $\frac{60°}{360°} × 2 ×
Question : If $\frac{xy}{x+y}=a$, $\frac{xz}{x+z}=b$ and $\frac{yz}{y+z}=c$, where $a,b,c$ are all non-zero numbers, $x$ equals to:
Option 1: $\frac{2abc}{ab+bc–ac}$
Option 2: $\frac{2abc}{ab+ac–bc}$
Option 3: $\frac{2abc}{ac+bc–ab}$
Option 4: $\frac{2abc}{ab+bc+ac}$
Correct Answer: $\frac{2abc}{ac+bc–ab}$
Solution : Given: $\frac{xy}{x+y}=a$, $\frac{xz}{x+z}=b$ and $\frac{yz}{y+z}=c$, where $a,b,c$ are all non-zero numbers. We can write $\frac{xy}{x+y}=\frac{1}{\frac{1}{x}+\frac{1}{y}}$ ⇒ $\frac{1}{a}=\frac{1}{x}+\frac{1}{y}$ -------------------------------(1) Similarly, we can write, $\frac{xz}{x+z}=\frac{1}{\frac{1}{x}+\frac{1}{z}}$ ⇒ $\frac{1}{b}=\frac{1}{x}+\frac{1}{z}$ --------------------------------(2) Similarly, $\frac{1}{c}=\frac{1}{y}+\frac{1}{z}$ ----------------------(3) Adding equation (1) and equation (2), ⇒ $\frac{1}{a}+\frac{1}{b}=\frac{2}{x}+\frac{1}{y}+\frac{1}{z}$ ⇒ $\frac{1}{a}+\frac{1}{b}=\frac{2}{x}+\frac{1}{c}$ ⇒ $\frac{1}{a}+\frac{1}{b}–\frac{1}{c}=\frac{2}{x}$ ⇒ $\frac{(bc+ac–ab)}{abc}=\frac{2}{x}$ $\therefore x=\frac{2abc}{(bc+ac–ab)}$
Question : Select the most appropriate ANTONYM of the given word.
Hostile
Option 1: Hospitable
Option 2: Bitter
Option 3: Nasty
Option 4: Aggressive
Correct Answer: Hospitable
Solution : The most appropriate option is the first option.
"Hospitable" is the direct antonym of "hostile". While "hostile" means unfriendly or antagonistic, "hospitable" means welcoming and friendly.
The meanings of the other options are as follows:
The Question containing Inaapropriate or Abusive Words
Question lacks the basic details making it difficult to answer
Topic Tagged to the Question are not relevant to Question
Question drives traffic to external sites for promotional or commercial purposes
The Question is not relevant to User
And never miss an important update