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Start learning 50% faster. Sign in now• Sound waves are longitudinal mechanical waves and frequency can be defined as the number of wave cycles happening in one sec. • Ultrasonic waves or Ultrasound waves: The sound frequency above 20,000Hz (upper audible limit of human hearing) is known as ultrasonic waves. Humans cannot detect it too. • Examples: Bat produce Ultrasonic waves.
Select the word which means the same as the group of words given.
Extreme fear of confined places
In each of the following questions, a word has been used in sentences in THREE different ways. Choose the option corresponding to the sentences in whic...
In each of the following questions, a word has been given and used in three statements. You are supposed to identify which of the statement/s use/s the...
Select the most appropriate synonym of the given word.
Diligent
In the question, one word is given in bold and correspondence to that, three
sentences are given each containing that word. Choose the optio...
Directions: In each question below, word is used in four different ways. Choose the option in which the usage of the word is INCORRECT or INAPPROPRIA...
In the following question, a word has been used in sentences in THREE different ways. Choose the option corresponding to the sentences in which the usa...
In the question below, three sentences are given, each of which has two words highlighted in bold. Choose the word in each sentence that fits appropria...
Select the synonym of the given word.
PREVENT
