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log 0.132 value

Now, log10 0.132 = log10 [ 1.32 × 10-1] = log10 1.32 + log10 10-1 = log10 1.32 - 1 {since log10 10-1 = log10 (1/10) = log10 - log10 10 = 0... View Article

Find the number of factors of 5400? a] 18 b] 36 b] 40 d] 48

A factor of a number is a number that can divide the given number completely. Here, 5400/18 = 300 5400/36 = 150 5400/40 = 135 But 48 cannot... View Article

We are given a 4-digit number using digits 1 to 9. What is the maximum 3-digit number that we can make by removing one digit from the given integer?

For any given 4-digit number, we can make the greatest 3-digit number by removing the smallest digit from that 4-digit number. For example,... View Article

If O is the point of intersection of two chords AB and CD such that OB = OD, then prove that triangles OAC and ODB are similar

<img class="img-responsive" src="https://cdn1.byjus.com/wp-content/uploads/2022/01/Figure-1.png" alt="Figure-1" title="Figure-1" /> Given,... View Article

List all factors of 378

Factors of 378 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126,189 The prime factorisation of 378 is 2 × 33× 7 Prime factors... View Article

Round off 2.999824 up to three decimal places

To round off 2.999824 up to three decimal places we look at the ten-thousandth place since it is greater than 5 we shall increase the thousandth... View Article

If x+y= 3 – cos4theta and x-y= 4sin2theta then prove that x^2 + y^2 – 8x – 8y – 2xy + 16 = 0

x + y = 3 - (1 - 2sin22 ) = 2 + 2sin22 x - y = 4sin2 ⇒ sin2 = (x - y)/4 ∴ x + y = 2 + 2[(x - y)/4]2= 2 + [x2 - 2xy + y2]/4... View Article

The arithmetic mean of the roots of the equation 4cos^3 x – 4cos^2 x – cos(315 + x) = 1 in the interaval (0, 315) is equal to:

We know that cos[(2n+1) + x] = - cos x Therefore, the given equation becomes 4cos3x - 4cos2x + cos x = 1 {since, cos 315 =... View Article

As the result of a wind blowing normal to the plane of the rectangular sign, a uniform pressure of 175 N/m^² is exerted in the direction shown in the figure. Determine the moment of the resulting force about point 0. Express your result as a vector using the coordinates shown.

Solution: As the net force acts on the center of the body. Force is given by the formula F=pa =175*(600*750)*10^{-6} =78.75 N From the... View Article

Which of the following characteristics is responsible for resistance to jassids

a) Morphological characteristics b) Biochemical characteristics c) Physiological characteristics d) None of the above Answer: a)... View Article

The inner lining of blood vessels is made of this tissue

a) Connective Tissue b) Muscular Tissue c) Nervous Tissue d) Epithelial Tissue Answer: d) Epithelial Tissue Explanation: The... View Article

The age structure of a population influences population growth because

a) Different age groups have different reproductive capabilities b) Younger females have more offspring than older ones c) Shorter... View Article

Largest heart is found in

a) Elephant b) Giraffe c) Crocodile d) Lion Answer: b) Giraffe Explanation: A Giraffe’s heart is 2 feet long and 11 kgs in... View Article

Ecosystem may be defined as

a) Group of Plants b) Group of Plants and Animals c) Group of Plants and Animals along with their environment d) Group of Water Plants... View Article

The first stage of the s-shaped growth curve of the population is

a) Log phase b) Lag phase c) Phase of acceleration d) Phase of deceleration Answer: b) Lag phase Explanation: The organisms that... View Article

The oesophagus that opens into the stomach is called

a) Glottis b) Gulltet c) Pharynx d) Larynx Answer: b) Gullet Explanation: Oesophagus is the passage by which the food passes from... View Article

The Respiratory quotient of protein, carbohydrate, and fat substrates are in the order

a) 0.7, 1, -1 b) 0.9, 1, less than 1 c) 0, -1, 1 d) 1, 0.9, less than 1 Answer: b) 0.9, 1, less than 1 Explanation: Respiratory... View Article

The pitch of the double-stranded B-DNA helix is

a) 34 A b) 3.4 A c) 3.4 nm d) Both A and C Answer: d) Both A and C Explanation: The B-DNA is the most common conformation of DNA.... View Article

The cartwheel structure is shown by the

a) Cilia b) Flagella c) Centriole d) All the above Answer: d) All the above Explanation: Centrosome is an organelle containing... View Article

The mature gametophyte of Funaria has the following

a) Rhizoids b) Leaves c) Stem or Main axis d) All the above Answer: d) All the above Explanation: Funaria is a bryophyte. The... View Article