Senior Inter: Ray Optics: Reflection, Refraction and Total internal reflection
Q: Define focal length and radius of curvature of a concave lens?
A: The distance of focal point from optic centre is known as focal length (f).
The distance between centre of lens and centre of curvature is called radius of curvature (R).
Q: What is optical density and how it differ from mass density?
A: Optical density is the property of a medium to slow down the speed of light. A medium of high refractive index has more optical density.
Mass per unit volume of a substance is m
called mass density (d = m/v ). An optically v denser medium may have less mass density.
Q: Define 'power' of a convex lens. What is its unit?
A: The tangent of angle by which a convex lens converges a beam of light, of unit breadth at its optic centre to its focus is called power of a convex lens. P = 1/f
Q: What is dispersion? which colour gets relatively more dispersed?
A: The phenomenon of splitting of light into its component colours is known as dispersion. Dispersion of white light gives VIBGYOR colours. The colour
with less wavelength disperses more. Thus violet colour undergoes more deviation.
Q: What is myopia? How can it be corrected?
A: It is one of optical defect of human eye. In which light ∝ rays are coming from distant object are converged at a point infront of retina. This defect is called shortsightedness. This can be corrected by using a concave lens.
Q: What is hypermetropia? How it can be corrected?
A: This is one of eye defect. In this incoming light from object is converged at a point behind the retina. This is called farsightedness. This defect can be corrected by using a convex lens.
10th Biology English Medium - Imp Questions
Q: What is epiglottis? (one mark)
A: The cartilaginous flap present over glottis preventing food from entering into larynx is called epiglottis.
Q: Why mitochondria are called as power houses of the cell? (one mark)
A: Mitochondria help in producing the energy or ATP. So, they are called the power houses of the cell.
Two Marks Questions
Q: What is reaction centre?
A: Chlorophyll and other accessory pigment molecules are situated in the thylakoid
membranes and organized to form reaction centres called photosystem I and photosystem
II. Highly reactive special forms of chlorophyll-a called p700 and p680 are present in PS I and PS II respectively.
P700 and p680 constitute the reaction centres.
Q: What is the difference between photophosphorylation and oxidative phosphorylation?
A: In Photosynthesis, ADP is changed to ATP by using the light energy. This is called (photosynthesis) photophosphorylation.
In respiration, ADP is changed to ATP by oxidation of glucose. This is called oxidative
phosphorylation.
Q: Write a short note on double circuit circulation system?
A: The heart that pumps blood to lungs for oxygenation is called pulmonary heart.
In frog and higher animals blood passes twice through the heart.
Once it passes through heart to lungs.
But for the second time it passes from heart to body parts.
Such a circulation is called double circuit circulation and the heart is called 'Double circuit heart'.
Q: What is agglutination of blood?
A: When the blood samples of different blood groups are mixed with each other clumps
are formed. The Clumping of blood cells is called agglutination.
Four Marks Questions
Q: What are the differences between right ventricle and left ventricle?
Right Ventricle
1. It is smaller in size.
2. Pulmonary aorta takes its origin.
3. Receives deoxygenated blood from right auricle.
4. Pumps deoxygenated blood to lungs.
5. The right auriculo ventricular aperture is guarded by the tricuspid valve.
Left Ventricle
1. It is larger in size than the right ventricle.
2. Systemic aorta takes its origin.
3. Receives oxygenated blood from left auricle.
4. Pumps oxygenated blood to all parts of the body.
5. The auricular ventricular aperture is guarded by the bicuspid valve, which is also called as mitral valve.
A: The cartilaginous flap present over glottis preventing food from entering into larynx is called epiglottis.
Q: Why mitochondria are called as power houses of the cell? (one mark)
A: Mitochondria help in producing the energy or ATP. So, they are called the power houses of the cell.
Two Marks Questions
Q: What is reaction centre?
A: Chlorophyll and other accessory pigment molecules are situated in the thylakoid
membranes and organized to form reaction centres called photosystem I and photosystem
II. Highly reactive special forms of chlorophyll-a called p700 and p680 are present in PS I and PS II respectively.
P700 and p680 constitute the reaction centres.
Q: What is the difference between photophosphorylation and oxidative phosphorylation?
A: In Photosynthesis, ADP is changed to ATP by using the light energy. This is called (photosynthesis) photophosphorylation.
In respiration, ADP is changed to ATP by oxidation of glucose. This is called oxidative
phosphorylation.
Q: Write a short note on double circuit circulation system?
A: The heart that pumps blood to lungs for oxygenation is called pulmonary heart.
In frog and higher animals blood passes twice through the heart.
Once it passes through heart to lungs.
But for the second time it passes from heart to body parts.
Such a circulation is called double circuit circulation and the heart is called 'Double circuit heart'.
Q: What is agglutination of blood?
A: When the blood samples of different blood groups are mixed with each other clumps
are formed. The Clumping of blood cells is called agglutination.
Four Marks Questions
Q: What are the differences between right ventricle and left ventricle?
Right Ventricle
1. It is smaller in size.
2. Pulmonary aorta takes its origin.
3. Receives deoxygenated blood from right auricle.
4. Pumps deoxygenated blood to lungs.
5. The right auriculo ventricular aperture is guarded by the tricuspid valve.
Left Ventricle
1. It is larger in size than the right ventricle.
2. Systemic aorta takes its origin.
3. Receives oxygenated blood from left auricle.
4. Pumps oxygenated blood to all parts of the body.
5. The auricular ventricular aperture is guarded by the bicuspid valve, which is also called as mitral valve.
IPE Senior Inter Exams Schedule - March 2014 Time Table
The Board of Intermediate Education, Government of Andhra Pradesh (BIEAP) has announced Senior Intermediate Examinations Schedule for March 2014. The examinations will commence from 13th March and close on 1st April 2014. Following is the detailed schedule of the IPE March 2014 (Senior Intermediate ) examinations.
Environmental education examinations will be held on 31st January 2014 and practical exams will be held from 12th February to 4th March 2014. Following is the subject wise schedule:
Environmental education examinations will be held on 31st January 2014 and practical exams will be held from 12th February to 4th March 2014. Following is the subject wise schedule:
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