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Choose the best alternative as the answer Danger always involves (A) Enemy (B) Attack (C) Fear (D) Help

Fear Danger is only felt when there is any fear. Hence, danger always involves fear Therefore, the correct option is (C)... View Article

Fill in the blank with a suitable option: He said, ‘It may rain later in the day’. He said that it _________ rain later in the day (A) Would (B) May (C) Might (D) Must

Might Might is used to express the future possibility In the given sentence, the speaker is expressing the possibility of rain later in the... View Article

A wheel has diameter 84 cm. Find how many complete revolutions must it take to cover 792 meters

Let r be the radius of the wheel Given Diameter = 84 cm 2r = 84 r = 84/2 r = 42 cm Circumference of the wheel = 2πr = 264 cm = 2.64 m... View Article

Which one of the following gas is most soluble in water? (A) He (B) H2 (C) NH3 (D) CO2

NH3 Ammonia is a colorless gas with a chemical formula NH3. It is most soluble in water because of hydrogen bonding with water. Hence, the... View Article

A tuning fork is used to produce resonance in a glass tube. The length of the air column in this tube can be adjusted by a variable piston. At room temperature of 27 degree C two successive resonances are produced at 20 cm and 73 cm column length. If the frequency of the tuning fork is 320 Hz, the velocity of sound in air at 27 degree C is: (A) 330 m/s (B) 339 m/s (C) 350 m/s (D) 300 m/s

Given two successive resonance is produced, Hence, using the formula, Formula of resonance V = 2f(l2 - l1) On substituting, we get, V = 2 x... View Article

Which One Of The Following Is Not An Agent Of Soil Erosion? (A)Rain. (B)Wind. (C)Industries. (D) Running Water.

The correct answer is (C)Industries. Soil erosion is the natural process in which a field's topsoil is carried away by physical sources such as... View Article

The Formula Of Microcosmic Salt Is

The formula of microcosmic salt is Na(NH4)HPO4 Explore more such questions and answers at BYJU’S.... View Article

What Happens When AgCl Is Doped With CdCl2. What Is The Name Of This Defect?

When Silver chloride (AgCl) is doped with Cadmium chloride (CdCl2), two Silver chloride ions (Ag) are replaced by one Cadmium ion(Cd+2). Later... View Article

What Does The Word Begar Mean?

The Word Begar refers to a practice where the worker is forced to render service to the 'master' free of charge. Explore more such questions and... View Article

A Simple Harmonic Motion Is Represented By X(t) = sin2 Omega T – 2 Cos2 Omega T.What Is The Angular Frequency Of Oscillation?

x = sin2 ωt - 2 cos2 ωt = 1 - 3 cos2 ωt = Explore more such questions and answers at BYJU’S.... View Article

Two Rods Of Equal Mass M And Length L Lie Along The X-axis And Y Axis With Their Centres Origin. What Is The Moment Of Inertia Of Both About The Line X=Y?

Sol: Moment of inertial of a rod of about an axis passing through centre and perpendicular to a length: Moment of inertia of the rod about... View Article

If The Overbridge Is Concave Instead Of Being Convex. What Will Be The Thrust On The Road At Lowest Position?

Let the normal reaction (thrust) applied by the bridge be N. Circular motion equation : mar= N − mg Therefore, Explore more such questions... View Article

State Three Functions Of The Placenta.

Placenta refers to the temporary vascular organ found in mammals, which attaches the fetus to the mother's uterus during pregnancy. The three... View Article

Through Which Of The Following Plants Do The Maximum Transpiration Occurs? (A) Bryophytes. (B) Mesophytes. (C) Thallophytes. (D) Pteridophytes.

The correct answer is (B) Mesophytes. Most of the transpiration occurs in mesophytic plants. In these plants, transpiration is the process that... View Article

The Sugar Solution Is A Homogeneous Mixture Whereas Oil And Water Is A Heterogeneous Mixture Justify.

A homogeneous mixture consists of a single phase. The sugar solution is a homogeneous mixture because sugar dissolves and is spread throughout... View Article

In Animal Cells, Protein Synthesis Occurs In (A) Cytoplasm. (B) Nucleolus As Well As Cytoplasm. (C) Cytoplasm As Well As Mitochondria. (D) Ribosomes Attached To The Nuclear Envelope.

The correct answer is (C) Cytoplasm As Well As Mitochondria. In animal cells, protein synthesis occurs in mitochondria, chloroplasts, cytoplasm... View Article

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