Which Of The Following Regulates The Amount Of Light Entering The Eye? (A) Lens. (B)Iris. (C) Cornea.(D)Retina.
The correct answer is (B)Iris. Explore more such questions and answers at BYJU’S.
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What Is The Oxidation State Of Carbon Atoms In Diamond And Graphite?
Both diamond and graphite are allotropes of carbon and the oxidation state of an element in its free state is... View Article
After 280 days, the activity of a radioactive sample is 6000dps. The activity reduces to 3000dps after another 140days. What Is The initial activity of the sample in dps?
As given in the question: The activity of the radioactive sample reduces to half in 140 days. The half-life of... View Article
State Henry’s Law. What Is The Significance Of Henry’s Law Constant Kh?
Henry’s law is defined as, at a constant temperature, the amount of a given gas that dissolves in a given... View Article
03 Sep 2021: UPSC Exam Comprehensive News Analysis
Sept 3rd, 2021, CNA:- Download PDF Here TABLE OF CONTENTS A. GS 1 Related B. GS 2 Related INTERNATIONAL RELATIONS... View Article
Name A Chloride Which Is Soluble In Excess Of Ammonium Hydroxide
Silver chloride(AgCl) is a chloride, which is soluble in excess of ammonium hydroxide. \(\begin{array}{l}2NH_{4}OH + AgCl \rightarrow [Ag(NH_{3})_{2}]Cl(aq) + H_{2}O... View Article
Acetals Are _______.(A) Aldehydes.(B) Ketones.(C) Diethers.(D) Hydro Aldehydes.
The correct answer is (C) Diethers, Explore more such questions and answers at BYJU’S.
How Is Acetic Acid Prepared From Acetylene
Acetic acid is prepared from Acetylene by converting acetaldehyde by passing through 40 per cent of Sulfuric acid (H2SO4) in... View Article
If X And Y Vary Inversely As Each Other And X = 10 When Y = 6.Find Y When X = 15.
Since x and y vary inversely, the product x*y always remains constant. 10 * 6 = 15 * y \(\begin{array}{l}\Rightarrow... View Article
The Aggregative Expenditure Method And Family Budget Method Always Give:(A)Same Results. (B) Different Results. (C) Approximate Results. (D) None Of These.
The correct answer is (A) Same Results. Explore more such questions and answers at BYJU’S.
Which Of The Following Is Not The Name Of A Physical Quantity? (A) Kilogram.(B) Mass.(C) Time. (D) Impulse.
The correct answer is (A) Kilogram. Explore more such questions and answers at BYJU’S.
What Are The Factors Of q2 – 10q + 21?
Sol: \(\begin{array}{l}q^{2} – 10q + 21 \end{array} \) \(\begin{array}{l}\Rightarrow q^{2} – 7q – 3q + 21 \end{array} \) \(\begin{array}{l}\Rightarrow q(q\;... View Article
Find The Whole Quantity If: 12 Of It Is Rs.1080.
Sol: Let the whole quantity be x 12% of x = Rs.1080 \(\begin{array}{l}\Rightarrow \frac{12}{100} * x = 1080\end{array} \) \(\begin{array}{l}\Rightarrow... View Article
Arrange the words given below in a meaningful sequence. (1) Poverty(2) Population(3) Death(4) Unemployment(5) Disease(A) 2, 3, 4, 5, 1. (B) 3, 4, 2, 5, 1. (C) 2, 4, 1, 5, 3. (D) 1, 2, 3, 4, 5.
The correct answer is (C) 2, 4, 1, 5, 3. (D) 1, 2, 3, 4, 5. Explore more such questions... View Article
A thin circular ring of the area a is held perpendicular to a uniform magnetic field of induction b. A small cut is made in the ring and a galvanometer is connected across the ends such that the total resistance of the circuit is r. When the ring is suddenly squeezed to zero area, the charge flowing through the galvanometer is :
Magnetic Flux \(\begin{array}{l}\Phi = BA\end{array} \) \(\begin{array}{l}\Delta \Phi = \Delta (BA) = B\Delta A = BA\end{array} \) Induced EMF \(\begin{array}{l}E... View Article
Two Forces P And Q Have A Resultantperpendicular To P The Angle Between The Forces Is
Sol: \(\begin{array}{l}tan\alpha = \frac{Q sin θ}{P + Q cos θ}\end{array} \) Here: α = Angle made by \(\begin{array}{l} \vec{R}\; $\end{array}... View Article
A Wire Of Fixed Length Is Wound On A Solenoid Of Length L And Radius
Sol: \(\begin{array}{l}L = \mu _{0} * n^{2} * V\end{array} \) Here: n is the number of turns per unit length... View Article
Tungsten Has An Atomic Radius Of 0136 nm. The Density Of Tungsten Is 194 g/cm3. What Is Crystal Structure Of Tungsten? (Atomic Weight Of Tungsten =184).(A) Simple Cubic.(B) Body Centered Cubic.(C) Face Centered Cubic.(D) None Of These.
The answer is (B) Body-Centred Cubic. Explore more such questions and answers at BYJU’S.
Which Of The Following City Is Known As Lancashire Of India.(A) Delhi.(B) Jaipur.(C) Mumbai. (D) Chennai.
The answer is (C) Mumbai. Mumbai city is known as Lancashire of India. This is because Mumbai is the premier... View Article
A square of side a lies above the x−axis and has one vertex at the origin. the side passing through the origin makes an angle α(0
Sol: We know that diagonal of a square makes an angle of 45° with its sides. So, \(\begin{array}{l}\angle DCA =... View Article
