SSLC (English Medium) कक्षा १० - Tamil Nadu Board of Secondary Education Question Bank Solutions

Xylem and phloem are arranged in alternate radii constitute a vascular bundle called ______.

Name the three basic tissues system in flowering plants.

Arjun is studying in the tenth standard. He was down with fever and went to meet the doctor. As he went to the clinic he saw a patient undergoing treatment for a severe leech bite. Being curious, Arjun asked the doctor why leech bite was not felt as soon as it attaches to the skin? What would have been the reply given by the doctor?

Leeches do not have an elaborate secretion of digestive juices and enzymes - Why?

Name the conditions when both the alleles are identical?

A garden pea plant produces axial white flowers. Another of the same species produced terminal violet flowers. Identify the dominant trait?

What do you understand by the terms phenotype and genotype?

A pure tall plant (TT) is crossed with the pure dwarf plant (tt), what would be the F₁ and F₂ generations? Explain.

Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the F₁ generation are then selfed to produce F₂ generation of pea plants.

What do the plants of the F₁ generation look like?

Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the F₁ generation are then selfed to produce F₂ generation of pea plants.

What is the ratio of tall plants to dwarf plants in the F₂ generation?

Pure-bred tall pea plants are first crossed with pure-bred dwarf pea plants. The pea plants obtained in the F₁ generation are then selfed to produce F₂ generation of pea plants.

Which type of plants was missing in the F₁ generation but reappeared in the F₂ generation?

Define inertia. Give its classification.

1. Assertion: There is no effects on the other ends when one end of the rod is only heated.
2. Reason: Heat always flows from a region of lower temperature to the higher temperature of the rod.

Mark the correct choice

1. Assertion: In a simple battery circuit the point of highest potential is the positive terminal of the battery.
2. Reason: The current flows towards the point of the highest potential

How many electrons are passing per second in a circuit in which there is a current of 5 A?

Velocity of sound in a gaseous medium is 330 ms^–1. If the pressure is increased by 4 times without causing a change in the temperature, the velocity of sound in the gas is

The velocity of sound in air at a particular temperature is 330 ms^–1. What will be its value when temperature is doubled and the pressure is halved?

Velocity of sound in the atmosphere of a planet is 500 ms^–1. The minimum distance between the sources of sound and the obstacle to hear the echo should be

A source of sound is travelling with a velocity 40 km/h towards an observer and emits a sound of frequency 2000 Hz. If the velocity of sound is 1220 km/h, then the apparent frequency heard by the observer is _____.

The velocity of sound is independent of temperature.