What is difference between Air and Wind?
The gaseous mixture in the atmosphere is called air. The wind is the horizontal motion of air caused by the... View Article
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Prove that sinA/1 + cosA = 1 – cosA / sinA
Solution: \(\begin{array}{l}\frac{sinA}{1+cosA}=\frac{1-cosA}{sinA}\end{array} \) Multiplying and dividing L.H.S by (1-cosA) \(\begin{array}{l}\frac{sinA}{1+cosA}\times \frac{1-cosA}{1-cosA}\end{array} \) \(\begin{array}{l}\frac{sinA\times (1-cosA))}{1-cos^{2}A}=\frac{1-cosA}{sinA}\end{array} \)
A spring of force constant k is cut into lengths
A spring of force constant k is cut into lengths of ratio 1:2:3. They are connected in series and the... View Article
Who wrote the kitab-ul-hind ?
Al-Biruni wrote kitab-ul-hind.
Describe the hybridization in case of PCL5. Why are axial bonds longer as compared to the equatorial bonds?
PCl5 is sp3d hybridised molecule. PCl5 has trigonal bipyramidal geometry. In this case the axial bonds are slightly longer than... View Article
What is the masculine of niece?
The masculine of niece is newphew.
How many 3 digit numbers are divisible by 6?
A total of 150 3-digit numbers are divisble by 6. Solution We have to determine the number of 3 digit... View Article
The term protobionts is used for describing the
The term ‘protobionts’ is used to describe the first formed cells.
A long solenoid has 1000 turns. When a current of 4 A flows through it, the magnetic flux linked with each turn of the solenoid is 4×10−3 Wb. What is the self-inductance of the solenoid?
Answer: Given N = 1000 turns I = 4A Φo = 4 × 10 –3 Wb Total flux linked =1000 × 4 × 10–3 Total flux linked = = 4... View Article
Parthenocarpy can be induced by
Parthenocarpy is caused by exogenous applications of plant hormones. Most genes associated with fruit set are related to growth regulators... View Article
Depreciation of fixed capital assets refers to
Depreciation of fixed capital assets relates to normal wear and tear and foreseen obsolescence. Depreciation is also described as the... View Article
Which of the following pairs has the same size?
Which of the following pairs has the same size? (a) Fe2+, Ni2+ (b) Zr4+, Ti4+ (c) Zr4+, Hf4+ (d) Zn2+,... View Article
1) A dog lives in ____ 2) A horse lives in ____ 3) A spider lives in _____ 4) A Mouse lives in _____ .
Answer: A dog lives in a kennel. A horse lives in a stable. A spider lives in rock and coral... View Article
Name one commercial use of yeast.
Yeast is utilised in producing bread and also in alcohol manufacturing.
What is full form of MSL?
The full form of MSL is Mean Sea Level.
Radioactive material ‘A’ has a decay constant ‘8λ’ and material ‘B’ has decay constant ‘λ’. Initially they have same number of nuclei. After what time, the ratio of number of nuclei of material ‘B’ to that ‘A’ will be 1/e?
The ratio of the number of nuclei of the material ‘B’ to ‘A’ will be 1/e after time 1/7λ. Radioactive... View Article
What is the advantage of per capita income? Mention any one.
Per Capita Income helps to examine and scrutinise the wealth of diverse populations and various regions. It is used as... View Article
Name the monomers present in the following.
Name the monomers present in the following polymers. Bakelite Buna-N Answer: Formaldehyde and Phenol are the monomer units of bakelite.... View Article
Difference between Signs and Symptoms
A symptom is a manifestation of disease apparent to the patient himself, while a sign is a manifestation of the... View Article
Repetition of a symbol in Roman numeral means
Repetition of a symbol in a Roman numeral indicates that the number has been repeated and thus the symbol denotes... View Article
