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The sides of a triangle are 3 cm, 4 cm and 5 cm. Its area is (1) 12cm2 (2) 15cm2 (3) 20cm2 (4) 6cm2

Answer: (4) 6 cm2 The sides of a triangle are 3 cm, 4 cm and 5 cm. The lengths of the sides are a = 3 cm b = 5 cm c = 4 cm ∴ s = (3 + 4... View Article

The sides of a triangle are 3cm, 5cm, and 4cm: Find its area.

The lengths of the sides are a = 3 cm b = 5 cm c = 4 cm Using the formula ⇒ ⇒ ⇒ = 6 sq.cm... View Article

If one chamber has a Ψw of – 2000 kPa, and the other – 1000 kPa, which is the chamber that has the higher Ψ ?

Chamber A with Ψw of - 1000 kPa has a higher water potential (Ψ) than the other with Ψw of - 2000 kPa. Water potential (Ψ) is the measure of how... View Article

An astronaut is looking down on earth’s surface from a space shuttle an altitude of 400 km Assuming that the astronaut’s pupil diameter is 5 mm and the wavelength of visible light is 500 nm, the astronaut will be able to resolve linear objects of the size of about :

=50m... View Article

Calculate the amount of charge flowing in 2 min in a wire of resistance 10Ω when a potential difference of 20V is applied between its ends.

Given, t = 2 min = 120 second R=10Ω, V = 20 volt We know that, I=V/R = 20/10 = 2 A Charge 2 = i*t = 2 *120 = 240 coulomb... View Article

4g argon (Atomic mass =40) in a bulb at a temperature of TK has a pressure P atm. When the bulb was placed in a hot bath at a temperature of 50 degrees C more than the first one, 0.8g of gas had to be removed to get the original pressure. T is equal to :

PV=nRT Consider argon P×V=4/40×R×T We know that molecular weight of Ar=40, On heating, P×V= (3.2/40)*R*(T+50) 4T=3.2T+160... View Article

The angular frequency of motion whose equation is 4d²y/dt²+9y=0 is (y=displacement and t=time)

Answer: Dividing the above equation by 4, we get comparing the above equation with the general equation of Simple Harmonic Motion ⇒ ⇒... View Article

A parallel beam of monochromatic light of wavelength 5000 A is incident on a single narrow slit of width 0.001 mm. The light is focussed by a convex lens on a screen placed on a focal plane. The first minimum will be formed for the angle of diffraction equal to a) 50 degrees b) 15 degrees c) 20 degrees d) 30 degrees

Option d) 30 degrees... View Article

An infinite G.P has first term ‘x’ and sum ‘5’ , then x belongs to : a) 010 c) ∣x∣<10 d) −10

Option a) 0<x<10The sum of infinite terms of GP is given by... View Article

Why do we need to separate different components of a mixture? Give two examples.

When two or more substances are mixed together, it is known as a mixture. To remove unuseful or harmful components it is necessary to separate... View Article

When two numbers are added then the number you get is called a) Sum b) Difference c) Addend d) None of the option

Option a) Sum. The sum is obtained when two numbers are added.... View Article

The _____ are an example of Buddhist literature. a) Arthashastra b) Tripitikas c) Kavirajamarga d) Mudrarakshasa

Option b) Tripitikas. Tripitikas refers to the earliest collection of Buddhist writings.... View Article

Cycas leaflets are a) Sessile, straight, and spiny b) Sessile, straight, and spherical c) Sessile, smooth, and twisted d) Sessile, straight and linear-lanceolate

Option d) Sessile, straight and linear-lanceolate.... View Article

Blue mountain peak is located in (a) Karnataka (b) Mizoram (c) Maharashtra (d) Tamil Nadu

Option (b) Mizoram. Blue Mountain is also known as Phawnpui. It is the highest mountain peak in Mizoram state.... View Article

In sclerenchyma, the cell wall is (a) Cutinised (b) Suberised (c) Pectinised (d) Lignified

Option (d) Lignified. The cell wall in sclerenchyma is lignified to provide mechanical support, rigidity, and also help in water conduction.... View Article

Fill in the blanks: Since the United States is a _ type of federation, all the constituent States have equal powers and States are vis-à vis the federal government. But India is a _ type of federation and some States have more power than others. In India, the ___ government has more powers.

(a) coming together(b) strong(c) holding together(d) Central... View Article

Stone canal is a part of ………….. structure of echinoderms. a) Water vascular b) Digestive c) Excretory d) Respiratory

Option c) March 20th. The stone canal is an s-shaped structure and is a part of the Water vascular system in echinoderms. These are used for... View Article

Which day is observed as world sparrow day a) August 22nd b) January 12th c) March 20th d) May 3rd

Option c) March 20th. To raise awareness about sparrows March 20th is celebrated as World Sparrow Day.... View Article

Which of the following lakes is a lagoon in the coastal region of odisha a) Barapani Lake b) Chilika Lake c) Bhimtal lake d) Hirakud Lake

Option b) Chilika Lake. Chilika Lake is a brackish water lagoon spread over various districts of Odisha state.... View Article

Domestication of honey bee is called as a) Pisciculture b) Sericulture c) Agriculture d) Apiculture

Option d) Apiculture. Maintaining honey bee colonies in order to collect honey and other associated products is known as Beekeeping or apiculture.... View Article

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