Class 09

Roundworms also called nematodes; belong to which phylum?

The phylum Cnidaria generally includes the animals which are…?

How many phyla are in the kingdom Animalia?

The members of the Radiata have how many layers of cells in their bodies?

Which one of the following is bilaterally symmetrical and triploblastic?

Which of the following are true coelomates?

The animals which do not have a body cavity are grouped under…?

Which group or phylum of animals is the simplest and least complex?

Kingdom Animalia consists of all animals which are…?

The name Animalia is derived from Latin, anima, what does it mean?

A moving -coil permanent magnet instrument can be used as _____by using a low resistance shunt.

The spring material used in a spring control device should have the following property.

A _____device prevents the oscillation of the moving system and enables the latter to reach its final position quickly

Which of the essential features is possessed by an indicating instrument?

Resistances can be measured with the help of

Which of the following are integrating instruments?

The use of ____instruments is merely confined within laboratories as standardizing instruments.

Choose the disadvantage of electrodynamometer instruments.

Which bridge method is limited to the measurement of law Q values from 1-10?

Which characteristic of an instrument defines its behaviour during rapid changes in the measured?

The number of elements of the set \({x:x\in Z,x^2=I}\) is ________

]The set  \({x:x\in A,x\in B,x\notin A\cap B}\) is

1. 1. \(A \cap B\)
   2. \(A \cup B\)
   3. \(A - B\)
   4. \(A \inc  B\)

The set of \((A\cupB)-(A\cap B)\) is

1. 1. \((A\cupB)^'\)
   2. \(A\inc B\)
   3. \((A\cap B)^'\)
   4. \(A^'\cup B^'\)

The set \((A-B)\cup (B-A)\) is

1. \(A\inc B\)
2. \(A\cupB\)
3. \(A\capB\)
4. \(A'\cup B^'\)

Sets having the same number of elements are called ___________

The set does not have a proper subset is __________

If \(n(A)=10\) and \(n(B)\) then the minimum and maximum number of elements in \(A\cap B\) is ________.

If \(B-A\) is \(B\) , then \(A\cap B\) is ________.

1. 1. \(A\)
   2. \(B\)
   3. \(U\)
   4. \(\emptyset\)

If \(U={x|x\inN,x<10}\) and \(A={x|x\in N,2<=x<6}\) then \((A^')^' \) is ---------.

1. 1. \({1, 6, 7, 8, 9}\)
   2. \({1, 2, 3, 4}\)
   3. \({2, 3, 4, 5}\)
   4. \({ }\)

Which of the following is correct?

1. 1. \({7} \in {1,2,3,4,5,6,7,8,9,10}\)
   2. \(7 \in {1,2,3,4,5,6,7,8,9,10}\)
   3. \(7 \notin {1,2,3,4,5,6,7,8,9,10}\)
   4. \({7} \notsubseteq {1,2,3,4,5,6,7,8,9,10}\)

Which technique is used to separate butter from curd? 

Which of the following is not a physical change?

Which of these mixtures is a colloid?

Which component in a solution is present in a larger amount?

What is the term used for a mixture where the solute does not dissolve but remains suspended?

Which of the following will show Tyndall effect?

What is the main difference between a solution and a suspension?

Which of the following is a heterogeneous mixture?

What type of mixture is soda water?

Which of the following is a pure substance according to scientists?

Which tissue is responsible for transmission of messages in the body?

Which animal tissue shows striations and is voluntary in action?

Which plant tissue lacks intercellular spaces and forms a protective outer covering?

Which tissue allows bending of stems in climbers?

Which of the following is a complex permanent tissue?

Which connective tissue connects muscles to bones?

Which of the following tissues stores fat in the human body?

Which tissue makes up the husk of a coconut?

What is the function of guard cells in the leaf epidermis?

Which plant tissue is responsible for flexibility in plant parts?

Where are antigens typically located?

Which of the following is a merocrine gland?

The animals which give birth to young ones are

Mammals are ____animals

The body of leech has

The brain of leech lies above the

Pharyngeal ganglion in leech is a part of

The segments of leech are known as

In leech Locomotion is performed by

The forward movement in swimming takes place because of _____?

Work done upon a body is ___

Newton’s first law is also known as____

Which one of the following has maximum inertia?

What is the mass of an object that requires a force of 90 N to accelerate at a rate of \(\frac {2.6m}{s^2}\)?

An odometer is an instrument used to measure ____ in automobiles

The work to be done to increase the speed of a 0.5 kg ball from 4 m/s to 8 m/s is:

Due to an acceleration of \(\frac {2m}{s^2}\) the velocity of a body increases from 20m/s to 30 m/s in a certain period. Find the displacement (in m) of the body in that period

There are two inclined surfaces of equal length (L) and same angle of inclination with the horizontal. One of them is rough and the other is perfectly smooth. A given body takes 2 times as much time to slide down on rough surface than on the smooth surface. The coefficient of kinetic friction between the object and the rough surface is close to:

When a bus starts suddenly, the passengers are pushed back. This is an example of which of the following?

If \(a,6,c,l,m\) are in A.P, then the value of \(a-46+6c-4l+m\) is____

The 8^th term of the sequence 1,1,2,3,5,8,… is

Which of the following is not true?

The value of when \(200=x(mod 7)\)  is___

The sum of exponents of the prime factors in the prime factorisation of 504 is

If \({(x,2),(4,y)}\) represents an identity function, then \((x,y)\) is

The ordered pairs \((a+1,4)(3,4a+b)\) are equal then \((a,b)\) is____

If there are 28 relation from set \(A={2,4,6,8}\) to a set \(B\) then the number of elements in \(B\) is__

If \(A={a,b,c} B={c,d,e} C={a,e,i,o,u}\) then \(n[A\cap C]\) is

If \(n(A\times B)=15\)and \(B={1,3,7}\) then \(n(A)\) is__

Which of the following best defines atomicity?

The gram atomic mass of nitrogen atom is?

Which of these has the smallest mass?

1. 1. \(6.023\times 10^23\) atoms of
   2. One atom of \(He\)
   3. 2g of \(He\)
   4. One mole of \(He\)

Which of the following statement is incorrect?

1. 1. One mole of electrons stands for \(6.023\times 10^23\) electrons
   2.  One mole of hydrogen gas contains Avogadro’s number of atoms
   3. 12 g of C-12 contains Avogadro’s number of atoms
   4. One mole of oxygen gas contains Avogadro’s number of molecules

The volume occupied by 1 mole of a diatomic gas at S.T.P. is

The gram molecular mass of oxygen molecule is

Which of the following has the smallest mass?

1. 1. 1 atom of He
   2. 2g of He
   3. 1 mole atoms of He
   4.  \(6.023\times 10^23\) atoms of He

In the nucleus of \(20Ca^40\) , there are

Mole of any substance contains ____ molecules.

1. 1. \(3.0115\times 10^23\)
   2. \(6.023\times 10^23\)
   3. \(6.023\times 10^-23 \)
   4. \(12.046\times 10^23\)

Which of the following is a triatomic molecule?

____ help in absorption of water and minerals.

______ is called the father of plant anatomy.

All the tissues inner to the endodermis of root constitute the

Who discovered light dependent photosynthesis?

The xylem and phloem arranged side by side on same radius is called

Which is formed during anaerobic respiration

The endarch condition is the characteristic feature of

Casparian stripes are present in the ___ of the root

Oxygen is produced at what point during photosynthesis?

1. 1. When \(H_2 O\)is splitted
   2. When \(CO_2 \) is fixed
   3. When ATP is converted to ADP
   4. All of these

Kreb’s cycle takes place in

The basement membrane originates from:

A matrix with equal number of rows and columns is called:

The system of equations has infinitely many solutions if:

1. 1. Determinant=0 and \(\ne \) adjoint
   2. Determinant \(\ne 0\)
   3. Determinant =0 and consistent
   4. Determinant =0 and inconsistent

If \[A = \begin{bmatrix}1 & 0 \\0 & 1\end{bmatrix}\], then is called:

The inverse of matrix \(A\) is given by:

1. 1. \(adj (A)\)
   2. \(\frac{adj(A)}{|A|}\)
   3. \(|A|adj(A)\)
   4. \(A^T \)

The matrix equation \(AX=B\)  has a unique solution if:

1. 1. \(A\) is a singular matrix
   2. \(A\) is symmetric
   3. \(A\) is a square matrix
   4. \(|A|\ne 0\)

If \[A = \begin{pmatrix} 2 & 3 \\ 1 & 4 \end{pmatrix}
\], then adjoint of \(A\) is

1. \[\begin{pmatrix} 4 & -3 \\ -1 & 2 \end{pmatrix}\]
2. \[\begin{pmatrix} 4 & 1 \\ 3 & 2 \end{pmatrix}\]
3. \[\begin{pmatrix} 4 & -1 \\ -3 & 2 \end{pmatrix}\]
4. \[\begin{pmatrix} 2 & -3 \\ -1 & 4 \end{pmatrix}\]

The value of determinant \[\begin|{vmatrix}3 & 1 \\2 & 4\end{vmatrix}|\]is:

The inverse of a matrix \(A\) exists if and only if:

1. 1. \(|A|=0\)
   2. \(A\) is symmetric
   3. \(|A|\ne 0\)
   4. \(A\) is a diagonal matrix

If the determinant of a matrix is zero, then the matrix is said to be:

Fertilization is defined as:

Which phase of life is referred to as the reproductive phase?

Which one of the following organisms is monoecious?

Oestrus cycle is found in:

Seasonal breeders are those that:

In which organism is natural death absent?

Which of the following organisms reproduces both sexually and asexually?

The lifespan of an organism is defined as the period from:

Budding is a common method of asexual reproduction in:

The term ‘clone’ refers to:

Which of the following plants reproduce through bulbils?

The phenomenon of more than one embryo developing in a seed is called:

Pollination by insects is called:

Which hormone is responsible for the development of parthenocarpic fruit?

What type of reproduction is found in Mango?

Double fertilization is a characteristic of:

The term ‘clone’ refers to:

Which part of the Bryophyllum helps in vegetative propagation?

Agamospermy is a type of reproduction that involves:

Which of the following is a natural method of vegetative propagation?

Packing efficiency of hexagonal close packing (hcp) is:

In n-type semiconductors, conductivity is due to:

The coordination number of type crystal is:

Which crystal system has all angles 90°, but unequal axes lengths?

Amphoteric oxide among these is:

1. 1. \(CO_(2)\)
      
   2. \(SO_(3)\)
   3. \(ZnO\)
   4. \(SiO_(2)\)

Which halogen is least reactive?

1. 1. \(F_(2)\)
   2. \(Cl_(2)\)
   3. \(Br_(2)\)
   4. \(I_(2)\)

Boron forms electron-deficient compounds due to:

Which element is the most electronegative in p-block?

Zone refining is mainly used for purification of:

Which method is used to refine copper?

Drift velocity of electrons in a conductor depends on all EXCEPT:

In a meter bridge, null point shifts toward left when:

Kirchhoff’s junction law id based on:

In parallel, potential difference across branches is:

Ohm’s law states that V=IR. In which of these is it invalid?

As the separation between capacitor plates increases, the capacitance:

Equipotential surfaces are always:

For two point charges at fixed distance, doubling each charge multiplies the force by:

Gauss’s law give the net flux through a closed surface as 0. Which situation is correct?

A point charge +q is located at the center of a hollow conducting spherical shell. The induced charge on the inner surface is:

If \(A.A^(-1)=I\), then \(A^-1 \) is called:

1. 1. Transpose of \(A\)
   2. Adjoint of \(A\)
   3. Determinant of \(A\)
   4. Inverse of \(A\)